In the earliest stages of drug discovery, chemists synthesize hundreds or thousands of novel compounds that must be rapidly screened for activity and characterized for identity. At this point, the primary analytical needs are structure confirmation, purity assessment, and solubility determination. Techniques such as HPLC coupled with UV-Vis detection provide rapid purity profiles, while mass spectrometry confirms molecular weight and NMR spectroscopy verifies structural connectivity. As promising leads advance into lead optimization and preclinical development, the analytical demands become more sophisticated. Pharmacokinetic studies require sensitive bioanalytical methods, typically based on liquid chromatography-tandem mass spectrometry (LC-MS/MS), capable of quantifying drug concentrations in biological matrices at picogram-per-milliliter levels. Stability studies necessitate forced degradation experiments followed by analysis with stability-indicating methods to understand how compounds behave under stress conditions including heat, light, oxidation, and hydrolysis. By the time a project reaches process development and manufacturing support, the analytical focus shifts toward robust method validation, impurity profiling at the parts-per-million level, in-process control testing, and solid-state characterization to understand polymorphism, crystallinity, and powder properties. Each of these analytical requirements maps to specific instrumental techniques, and selecting the right combination of platforms for a given project is a critical determinant of overall development efficiency.
Table.1 Analytical Techniques Mapped to Drug Development Stages.
| Development Stage | Primary Analytical Objectives | Key Instrumental Techniques |
| Early Discovery | Structure confirmation, purity screening, solubility assessment | HPLC-UV, MS, NMR, UV-Vis |
| Lead Optimization | Metabolic stability, physicochemical profiling, activity correlation | LC-MS, HRMS, FTIR, DSC |
| Preclinical Development | Bioanalysis, stability evaluation, impurity identification | LC-MS/MS, TGA, XRD, GC-MS |
| Process Development | In-process monitoring, method validation, scale-up support | HPLC, IC, ICP-MS, GC |
| Manufacturing Support | Release testing, polymorphism control, particle characterization | UHPLC, XRD, BET, particle size analysis |
Chromatography remains the foundational separation science upon which much of pharmaceutical analysis is built. The ability to resolve complex mixtures into individual components, quantify each species with precision, and collect separated fractions for further characterization makes chromatography indispensable across all stages of drug development. Modern chromatographic platforms range from conventional high-performance systems to ultra-high-speed variants, from liquid-phase techniques suitable for polar and non-volatile compounds to gas-phase methods optimized for volatile analytes. Selecting the appropriate chromatographic mode depends on the physicochemical properties of the target analytes, the complexity of the sample matrix, the required detection sensitivity, and the throughput demands of the project.
Principle: HPLC separates sample components based on differential partitioning between a liquid mobile phase and a solid stationary phase packed within a column. The mobile phase is driven through the column under high pressure generated by a pump, and the column is typically packed with silica-based particles functionalized with bonded phases such as C18, C8, phenyl, or cyano groups. Individual components migrate at different rates depending on hydrophobicity, polarity, or specific interactions, eluting sequentially from the column. Resolution of complex mixtures is achieved through systematic optimization of mobile phase composition, gradient program, flow rate, and column temperature.
Detected Parameters: Retention time (tR), peak area, peak height, resolution (Rs), theoretical plate number (N), tailing factor (Tf), content percentage, purity percentage, impurity content.
Applications in Pharmaceutical Analysis: HPLC serves as the core platform for quality control of small molecule drugs and synthetic intermediates, spanning raw material testing, in-process control, release testing, and stability evaluation throughout the full workflow. In the biologics field, it is also applied for purity assessment of peptides and nucleotides. Through systematic optimization of column chemistry, mobile phase system, and gradient program, typical precision with relative standard deviation below 2% can be achieved, meeting accuracy and reproducibility requirements from early-stage screening through commercial quality control.
Principle: UHPLC employs sub-2-micrometer particle sizes combined with high-pressure system hardware capable of operating above 15,000 psi. The smaller particle diameter significantly reduces the height equivalent of a theoretical plate by shortening mass transfer distance, yielding substantially higher column efficiency compared to conventional HPLC. The faster equilibration of components between mobile and stationary phases enables equivalent or superior resolution in significantly shorter analysis times.
Detected Parameters: Retention time (tR), peak area, peak height, resolution (Rs), theoretical plate number (N, significantly higher than HPLC), peak width at half height, column efficiency (plate height H), analysis time, backpressure, content percentage, purity percentage.
Applications in Pharmaceutical Analysis: UHPLC is particularly valuable for high-throughput screening in early discovery and rapid purity assessment of large sample batches. Its high speed and high resolution significantly shorten method development cycles and reduce solvent consumption. UHPLC is also increasingly adopted for routine quality control and stability testing, enabling faster batch release decisions. Transfer of methods from HPLC to UHPLC requires appropriate scaling of gradient time and flow rate.
Principle: GC uses an inert carrier gas such as helium or hydrogen as the mobile phase, transporting vaporized samples through a capillary column coated with a stationary phase on the inner wall. Separation is achieved based on differences in boiling point and polarity as components partition between the gas phase and the stationary phase. Modern capillary GC columns offer extremely high theoretical plate counts, enabling efficient separation of complex mixtures.
Detected Parameters: Retention time (tR), peak area, peak height, resolution (Rs), theoretical plate number (N), peak width at half height, response factor, content percentage; when coupled with MS detection, mass-to-charge ratio (m/z) and ion abundance are also obtained.
Applications in Pharmaceutical Analysis: GC is the method of choice for residual solvent analysis, enabling precise quantification of volatile organic solvents in drug substances and products. It is also employed for volatile impurity detection, fatty acid methyl ester profiling, essential oil analysis, and environmental contaminant monitoring at high sensitivity. For non-volatile or thermally labile compounds, derivatization strategies such as silylation or acylation convert polar functional groups into volatile derivatives suitable for GC analysis. Validated GC methods are routinely applied for process control and release testing.
Principle: IC is a specialized form of liquid chromatography designed for the separation of ionic species. Anion exchange columns with quaternary ammonium groups separate negatively charged species such as chloride, sulfate, and phosphate, while cation exchange columns with sulfonic acid or carboxylic acid groups separate positively charged ions including sodium, potassium, calcium, and magnesium. Suppressed conductivity detection reduces background conductivity of the mobile phase, achieving high-sensitivity detection of ionic species at parts-per-billion levels.
Detected Parameters: Retention time (tR), peak area, peak height, conductivity response, ion concentration (ppm or ppb level), peak resolution, limit of detection (LOD), limit of quantification (LOQ).
Applications in Pharmaceutical Analysis: IC is primarily employed for counterion analysis to confirm salt form identity and stoichiometry of salt-form drugs. It is also used for quantification of inorganic impurities such as chloride and sulfate, analysis of ionic degradation products, and monitoring of residual ions from synthesis or purification steps. For ionic active pharmaceutical ingredients, IC provides retention and separation capabilities that reverse-phase HPLC cannot adequately achieve.
Principle: IEX separates molecules based on differences in net surface charge. Cation exchange chromatography uses negatively charged stationary phases such as sulfonic acid or carboxylic acid groups to retain positively charged molecules, while anion exchange chromatography uses positively charged stationary phases such as quaternary ammonium groups to retain negatively charged molecules. By adjusting mobile phase ionic strength or pH, the strength of electrostatic interactions is controlled, enabling selective elution and separation.
Detected Parameters: Retention time (tR), peak area, peak height, charge variant distribution percentage, acidic variant content, basic variant content, main peak percentage, resolution (Rs), elution pH or salt concentration gradient.
Applications in Pharmaceutical Analysis: IEX is the core technology for charge variant analysis of biopharmaceuticals, enabling precise separation and quantification of charge variants resulting from post-translational modifications such as deamidation and C-terminal lysine truncation, which may affect product safety, efficacy, and stability. IEX is also widely used in downstream purification of antibodies and proteins, achieving high-resolution separation with excellent yield during capture and polishing steps.
Principle: SEC separates molecules based strictly on hydrodynamic radius rather than chemical affinity. The column is packed with porous particles with controlled pore size distributions. Large molecules are excluded from the pores and elute first, while smaller molecules enter the pores, effectively increasing their path length through the column and eluting later. This gentle non-adsorptive separation mechanism does not cause protein denaturation or structural alteration, making it ideal for biomacromolecule analysis.
Detected Parameters: Retention time (tR), peak area, peak height, monomer percentage, high-molecular-weight aggregate content (dimer, oligomer), low-molecular-weight fragment content, molecular weight distribution, polydispersity index (Đ); when coupled with multi-angle light scattering (MALS), absolute molecular weight can be determined.
Applications in Pharmaceutical Analysis: SEC is the primary analytical tool for aggregate and fragment analysis of biopharmaceuticals. Aggregation is a critical quality attribute because aggregates can trigger immunogenic responses and reduce product potency. Monomer purity and aggregate content are therefore routinely monitored through stability protocols, release testing, and in-process monitoring. Coupling with MALS enables absolute molecular weight determination without reliance on column calibration standards.
Principle: 2D-LC transfers fractions eluting from a first-dimension column online to a second-dimension column with a different separation mechanism, achieving a multiplying effect on resolving power through orthogonal combinations. Heart-cutting mode transfers only specific regions of interest to the second dimension for enhanced resolution, while comprehensive mode analyzes the entire effluent, providing peak capacities far exceeding one-dimensional chromatography.
Detected Parameters: First-dimension retention time, second-dimension retention time, two-dimensional resolution (Rs), peak capacity, peak area and height in each dimension, component identification match factor, content percentage, coverage percentage (comprehensive mode).
Applications in Pharmaceutical Analysis: 2D-LC is particularly valuable for impurity profiling of complex drug substances, analysis of reaction mixtures containing numerous structurally similar byproducts, characterization of biopharmaceuticals with extensive microheterogeneity, and comprehensive metabolite identification. For critical peak pairs that are difficult to resolve, heart-cutting 2D-LC provides targeted resolution enhancement. Although more complex in system configuration and method development than conventional HPLC, the information depth from a single analysis significantly reduces the total analytical burden for challenging samples.
Table.2 Core Chromatography Services for Drug Development.
| Service Name | Description | Inquiry |
| Chromatography Testing | Comprehensive chromatographic analysis including HPLC, UHPLC, GC, IC, IEX, SEC, and 2D-LC for purity, impurity profiling, and quantification. | Inquiry |
| HPLC Testing | Reverse-phase, normal-phase, and ion-pairing HPLC methods for small molecule analysis, content assay, and stability testing. | Inquiry |
| UHPLC Testing | High-speed, high-resolution separations using sub-2-micrometer particle columns for accelerated method development and high-throughput screening. | Inquiry |
| GC Testing | Residual solvent analysis, volatile impurity detection, and fatty acid profiling using capillary GC with FID, ECD, or MS detection. | Inquiry |
| SEC/GPC Testing | Molecular weight distribution, aggregate analysis, and fragment detection for proteins, antibodies, polymers, and conjugates. | Inquiry |
| 2D Chromatography Testing | Heart-cutting and comprehensive two-dimensional separations for complex mixture analysis and enhanced impurity profiling. | Inquiry |
Spectroscopic methods provide molecular fingerprints that reveal the structural identity, chemical environment, and composition of pharmaceutical compounds. Unlike chromatography, which separates mixtures, spectroscopy interrogates the interaction between electromagnetic radiation and matter, producing signals that correspond to specific molecular vibrations, electronic transitions, nuclear spin environments, or elemental compositions. These techniques are essential for confirming the identity of synthesized compounds, detecting functional group transformations, monitoring chemical reactions, characterizing solid-state forms, and quantifying elemental impurities.
Principle: NMR exploits the non-zero nuclear spin magnetic moments of atomic nuclei, primarily 1H and 13C. When placed in a strong external magnetic field, these nuclei absorb radiofrequency radiation and undergo transitions between spin states. The resonance frequency depends on the chemical environment surrounding the nucleus, specifically electron density and the influence of neighboring atoms, a parameter known as chemical shift. Through one-dimensional proton and carbon spectra as well as two-dimensional correlation experiments, connectivity relationships and spatial configurations within molecules can be resolved.
Detected Parameters: Chemical shift (δ, ppm), coupling constant (J, Hz), integration area (proton number ratio), peak splitting pattern (multiplicity), relaxation time (T1, T2), two-dimensional correlation signals (COSY, HSQC, HMBC); quantitative NMR (qNMR) yields absolute content percentage.
Applications in Pharmaceutical Analysis: NMR is the gold standard for structural elucidation of new compounds, verifying structural integrity through comparison of experimental spectra with predicted chemical shifts. qNMR enables purity quantification without reference standards. NMR is used for reaction progress monitoring to track disappearance of starting materials and appearance of products, and for conformational analysis to understand three-dimensional spatial arrangement. High-field NMR (400 MHz and above) provides the resolution and sensitivity needed for complex molecules. LC-NMR coupling enables online structural analysis of mixture components.
Principle: FTIR measures the absorption of infrared radiation by molecular bonds. Chemical bonds vibrate at characteristic frequencies, and when infrared light frequency matches the molecular vibration frequency, absorption occurs. Different functional groups produce absorption bands at specific wavenumbers: carbonyl at approximately 1700 cm-1, hydroxyl near 3300 cm-1, and aromatic C-H between 3000-3100 cm-1. A Fourier transform interferometer simultaneously measures multi-wavelength signals, which are mathematically converted into a complete infrared spectrum.
Detected Parameters: Absorption wavenumber (cm-1), transmittance (T%) or absorbance (A), peak position, peak intensity, peak width at half height, characteristic functional group band positions, fingerprint region match factor.
Applications in Pharmaceutical Analysis: The infrared spectrum serves as a molecular fingerprint for identity confirmation of active pharmaceutical ingredients and excipients. Different polymorphs typically exhibit significant peak position shifts and intensity differences in the fingerprint region, making FTIR an important tool for polymorph discrimination. FTIR is also used for monitoring solid-state reactions, detecting residual solvents, identifying unknown contaminants, and evaluating excipient compatibility. Attenuated total reflectance (ATR) sampling enables direct measurement of solid, liquid, and gel samples with minimal preparation.
Principle: Raman spectroscopy measures the inelastic scattering of monochromatic light, typically from a laser source, as it interacts with molecules. Incident photons exchange energy with molecular vibrations, producing scattered light at shifted wavelengths; the shift corresponds to molecular vibrational mode frequencies, and intensity relates to the change in polarizability during vibration. Raman is complementary to infrared spectroscopy: infrared is sensitive to vibrations with strong dipole moment changes, while Raman responds to vibrations with large polarizability changes, such as symmetric bonds and non-polar groups.
Detected Parameters: Raman shift (cm-1), scattering intensity, peak position, peak width, peak area ratio, signal-to-noise ratio (S/N); in Raman imaging mode, spatially resolved chemical distribution maps are obtained.
Applications in Pharmaceutical Analysis: Raman spectroscopy requires virtually no sample preparation and can directly analyze samples through glass ampoules and blister packaging. It is widely applied for polymorph identification and quantification, as different crystal forms produce characteristic spectral patterns. Confocal Raman microscopy enables spatial imaging of active ingredient and excipient distribution within tablet cross-sections. Portable Raman instruments have expanded applications to incoming raw material inspection, in-process manufacturing monitoring, and on-site quality verification.
Principle: UV-Vis measures the absorption of electromagnetic radiation in the 190-800 nm range by chromophoric groups within molecules, including conjugated double bonds, aromatic rings, and carbonyl functionalities. Based on the Beer-Lambert law, absorbance is directly proportional to the concentration of the absorbing species and the path length. Light from a continuous source is dispersed by a monochromator, passes through the sample cell, and is converted to absorbance values by the detector.
Detected Parameters: Maximum absorption wavelength (λmax), absorbance (A), molar absorptivity (ε), transmittance (T%), concentration (mg/mL or μg/mL), linear regression correlation coefficient (R2), LogP/LogD values (partition coefficient determination).
Applications in Pharmaceutical Analysis: UV-Vis is the most common detection mode for HPLC systems, providing universal response for chromophore-containing analytes. Standalone UV-Vis spectrophotometers are widely used for content assay, dissolution testing, and kinetic studies. Colorimetric assays extend UV-Vis applications to non-chromophoric species by converting them into colored products. UV-Vis is also employed for partition coefficient (LogP/LogD) determination, a key physicochemical parameter influencing drug absorption, distribution, metabolism, and excretion behavior.
Principle: ICP spectroscopy uses an argon plasma operating at temperatures of approximately 6000 to 10,000 K as an excitation and ionization source to completely atomize and ionize samples. ICP-OES detects the characteristic wavelengths of light emitted as excited atoms or ions return to the ground state. ICP-MS extracts ions from the plasma into a mass spectrometer where they are separated by mass-to-charge ratio (m/z) and detected with extraordinary sensitivity, routinely achieving parts-per-trillion detection limits for most elements.
Detected Parameters: Elemental concentration (ppb or ppt level), emission wavelength (ICP-OES) or mass-to-charge ratio (ICP-MS), signal intensity (cps), limit of detection (LOD), limit of quantification (LOQ), isotope ratio, internal standard recovery.
Applications in Pharmaceutical Analysis: ICP-MS is the platform of choice for elemental impurity analysis, simultaneously determining heavy metals such as lead, cadmium, mercury, and arsenic, as well as catalyst residues including palladium, platinum, and nickel, to verify compliance with permitted daily exposure (PDE) limits. Additional applications include elemental characterization of metal-containing drug candidates, mineral content analysis of natural products, and elemental marker detection in extractables and leachables studies. Samples require microwave-assisted acid digestion to completely decompose organic matrices.
Principle: AAS is based on the absorption of characteristic wavelength light by ground-state atoms in the vapor phase. A hollow cathode lamp emits the specific spectrum of the element of interest; as light passes through atomized sample vapor in a flame or graphite furnace, it is absorbed by ground-state atoms, with absorbance proportional to elemental concentration. Flame AAS (air-acetylene or nitrous oxide-acetylene) is suitable for ppm-level concentrations, while graphite furnace AAS (GFAAS) achieves ppb-level detection limits through electrothermal atomization.
Detected Parameters: Absorbance (A), characteristic absorption wavelength (nm), calibration curve linear range, limit of detection (LOD), limit of quantification (LOQ), characteristic mass (m0, GFAAS), precision (RSD%).
Applications in Pharmaceutical Analysis: AAS is particularly well-suited for precise determination of heavy metals, alkali metals, and alkaline earth metals. Hydride generation AAS extends applications to arsenic, selenium, and antimony, which form volatile hydrides. Cold vapor AAS provides exceptional sensitivity for mercury analysis. Because each element absorbs only at its characteristic wavelengths, AAS offers excellent specificity with minimal matrix interference. The relatively low instrument cost and straightforward operation make AAS a practical choice for laboratories with focused elemental analysis requirements.
Principle: XRF is a non-destructive elemental analysis technique. When primary X-rays irradiate a sample, inner-shell electrons are ejected creating vacancies that are filled by outer-shell electrons. As these electrons transition, they release secondary characteristic X-rays (fluorescent X-rays). The detector measures the energy and intensity of fluorescent X-rays: energy corresponds to element identity, and intensity corresponds to elemental concentration. Energy-dispersive XRF (EDXRF) is suitable for rapid screening, while wavelength-dispersive XRF (WDXRF) provides higher resolution and sensitivity.
Detected Parameters: Characteristic X-ray energy (keV), fluorescence intensity (cps), elemental concentration (ppm level), peak area ratio, limit of detection (LOD), matrix effect correction coefficient.
Applications in Pharmaceutical Analysis: XRF can directly analyze solid dosage forms, powders, and filters with virtually no sample preparation. It is applied for elemental screening of excipients, verification of catalyst residues in drug substances, analysis of extractable metals from packaging materials, and rapid screening of environmental samples. Micro-XRF mapping reveals inhomogeneities in tablet composition, supporting formulation optimization. The completely non-destructive nature of XRF makes it uniquely advantageous for precious samples or archived specimens.
Table.3 Spectroscopy Services for Drug Development.
| Service Name | Description | Inquiry |
| Spectroscopy Testing | FTIR, Raman, UV-Vis, NMR, and other spectroscopic methods for structural characterization and identity confirmation. | Inquiry |
| NMR Testing | Structural elucidation, quantification (qNMR), and conformational analysis using high-field 1H, 13C, and 2D NMR techniques. | Inquiry |
| Raman Testing | Non-destructive molecular fingerprinting, polymorph identification, and chemical imaging through confocal Raman microscopy. | Inquiry |
| UV-Vis Testing | Rapid quantification, dissolution testing, content assay, and LogP/LogD determination for chromophore-containing compounds. | Inquiry |
| ICP Testing | Multi-element trace analysis and heavy metal screening using ICP-OES and ICP-MS for elemental impurity compliance. | Inquiry |
| AAS Testing | Flame and graphite furnace atomic absorption for precise determination of individual metal concentrations at ppm to ppb levels. | Inquiry |
| X-ray Fluorescence Testing | Non-destructive elemental screening of solids, powders, and packaging materials using EDXRF and WDXRF techniques. | Inquiry |
Mass spectrometry (MS) is arguably the most versatile analytical technique in modern pharmaceutical research, providing molecular weight information, structural identification, and quantitative data with extraordinary sensitivity and specificity. The technique ionizes sample molecules and separates the resulting ions based on their mass-to-charge ratio (m/z), producing a mass spectrum that serves as a unique molecular fingerprint.
Principle: A triple quadrupole consists of three quadrupole mass analyzers arranged in series: Q1 selects a specific precursor ion, Q2 serves as a collision cell where precursor ions undergo collision-induced dissociation (CID) with an inert gas to produce characteristic fragment ions, and Q3 selectively monitors one or more fragment ions. Multiple reaction monitoring (MRM) mode detects only ions with the correct precursor mass and correct fragment mass, dramatically reducing chemical noise and background interference from complex matrices.
Detected Parameters: Mass-to-charge ratio (m/z, precursor and product ions), MRM transitions, collision energy (CE, eV), dwell time (ms), linear dynamic range (4-6 orders of magnitude), limit of detection (LOD, pg/mL level), lower limit of quantification (LLOQ), signal-to-noise ratio (S/N), accuracy (% bias), and precision (RSD%).
Applications in Pharmaceutical Analysis: QQQ-MS is the gold standard for targeted quantitative analysis, widely applied in bioanalytical method development for pharmacokinetic and toxicokinetic studies, quantification of trace genotoxic impurities, cleaning verification, and environmental monitoring of pharmaceutical manufacturing effluents. The linear dynamic range spanning 4 to 6 orders of magnitude enables accurate quantification of trace analytes in complex matrices such as plasma, urine, and tissue homogenates. Method development involves optimization of ionization conditions, collision energy, MRM transitions, and chromatographic separation to achieve required sensitivity while maintaining method robustness.
Principle: TOF determines ion mass by measuring the flight time of ions through a field-free drift tube after acceleration by a pulsed electric field. All ions receive identical kinetic energy during acceleration; lighter ions travel faster and reach the detector earlier. Flight time is proportional to the square root of m/z. Modern TOF instruments achieve resolutions exceeding 20,000 and mass accuracies better than 5 ppm with internal calibration, with theoretically unlimited mass range and extremely fast scanning capabilities.
Detected Parameters: Accurate mass (m/z, 4-5 decimal places), resolution (R = m/Δm), mass accuracy (ppm), isotopic distribution pattern, signal-to-noise ratio (S/N), dynamic range, scan speed (Hz); in Q-TOF mode, fragment ion accurate mass and collision energy are also obtained.
Applications in Pharmaceutical Analysis: TOF-MS is employed for molecular formula confirmation through accurate mass measurement, identification of unknown impurities and degradation products through fragmentation analysis, molecular weight screening of compound libraries, and analysis of polymers and large molecule therapeutics. Q-TOF configurations enable MS/MS experiments with accurate mass measurement of both precursor and fragment ions. The high scanning speed supports data-independent acquisition (DIA) strategies for comprehensive retrospective analysis.
Principle: The Orbitrap consists of an outer barrel-like electrode and a coaxial inner spindle electrode. Ions are trapped in electrostatic orbital motion between the electrodes; axial oscillation frequency is inversely proportional to the square root of m/z. Through image current detection and Fourier transform signal processing, ultra-high mass accuracy is achieved. Routine resolution exceeds 100,000 (at m/z 200), with mass accuracy below 1 ppm, enabling unambiguous molecular formula assignment through mass defect analysis and isotopic pattern matching.
Detected Parameters: Resolution (>100,000 @ m/z 200), mass accuracy (<1 ppm), mass-to-charge ratio (m/z), isotope fine structure, signal-to-noise ratio (S/N), dynamic range (>5000), MSn fragment ion accurate mass, charge state (z).
Applications in Pharmaceutical Analysis: Orbitrap-MS is the platform of choice for the most demanding qualitative applications: distinguishing structurally similar compounds in impurity profiling; accurate mass determination of low-abundance metabolites in complex biological matrices; resolving isotopic fine structures of multiply charged large molecules in proteomics and biomolecular characterization; and dereplication of natural products based on subtle mass differences. MSn fragmentation supports detailed structural elucidation, and coupling with liquid chromatography enables online analysis of complex mixtures.
Principle: HRMS encompasses mass spectrometry platforms providing both high mass resolution (ability to distinguish ions with very similar m/z values) and high mass accuracy (ability to measure m/z values very close to true values), primarily including Orbitrap and high-resolution TOF analyzers. At sub-5-ppm mass accuracy, the number of possible molecular formulas consistent with a measured mass becomes sufficiently small that unambiguous formula assignment is usually achievable. Extracted ion chromatograms with very narrow mass windows (±5 ppm) provide dramatically improved selectivity over unit-mass resolution techniques.
Detected Parameters: Resolution (R > 20,000), mass accuracy (<5 ppm, typically <1 ppm), accurate mass (m/z), isotope distribution match score, mass defect value, fragment ion accurate mass and relative abundance, dynamic range, peak capacity.
Applications in Pharmaceutical Analysis: HRMS supports non-targeted screening, comprehensive impurity profiling, and unknown identification. Data-independent acquisition (DIA) workflows systematically fragment all ions, generating comprehensive datasets that can be retrospectively interrogated. Mass defect filtering exploits characteristic mass defect patterns of drug-like molecules to selectively identify structurally related impurities and metabolites while filtering matrix interferences. For impurity profiling, HRMS enables elemental composition determination of all detected peaks through accurate mass measurement, followed by structural characterization through fragmentation pattern interpretation.
Table.4 Mass Spectrometry Services for Drug Development.
| Service Name | Description | Inquiry |
| MS Testing | Comprehensive mass spectrometry analysis including Triple Quadrupole (QQQ), Time-of-Flight (TOF), and Orbitrap platforms for molecular weight determination, quantitation, and structural identification. | Inquiry |
| HRMS Testing | High-resolution mass spectrometry using Orbitrap or TOF analyzers for accurate mass determination, elemental formula assignment, and comprehensive impurity profiling. | Inquiry |
Hyphenated analytical techniques combine two or more analytical methods into a single integrated system, leveraging the strengths of each technique to overcome the limitations of individual platforms. The most common hyphenated systems in pharmaceutical analysis couple chromatographic separation with spectroscopic or mass spectrometric detection.
Principle: LC-MS combines the separation power of HPLC or UHPLC with the detection specificity and sensitivity of mass spectrometry. The interface between the chromatograph and mass spectrometer, typically an electrospray ionization (ESI) or atmospheric pressure chemical ionization (APCI) source, efficiently converts liquid-phase analytes into gas-phase ions. ESI is particularly effective for polar and ionic compounds, producing multiply charged ions for large molecules. APCI is preferred for less polar, more thermally stable small molecules and tolerates higher mobile phase flow rates.
Detected Parameters: Chromatographic retention time (tR), mass-to-charge ratio (m/z), precursor ion m/z, product ion m/z (MRM mode), peak area, peak height, signal-to-noise ratio (S/N), limit of detection (LOD), lower limit of quantification (LLOQ), accuracy (% bias), precision (RSD%), linear range.
Applications in Pharmaceutical Analysis: LC-MS is applied to virtually every analytical workflow requiring both separation and identification: impurity profiling and characterization, stability-indicating method development, metabolite identification, pharmacokinetic bioanalysis, and quality control testing. Method development involves simultaneous optimization of chromatographic conditions (column, mobile phase, gradient) and ionization parameters (source temperature, gas flows, voltages) to maximize sensitivity and minimize ion suppression effects.
Principle: GC-MS combines the high resolving power of capillary gas chromatography with the structural identification capabilities of electron ionization (EI) mass spectrometry. In the EI source, vaporized analytes are bombarded with 70 eV electrons, producing characteristic fragmentation patterns that are reproducible across instruments and searchable against comprehensive spectral libraries including NIST and Wiley. This library search capability enables rapid identification of unknown compounds.
Detected Parameters: Chromatographic retention time (tR), mass-to-charge ratio (m/z), characteristic fragment ions and relative abundances, library match factor/probability, peak area, peak height, limit of detection (LOD), limit of quantification (LOQ), linear range; in GC-MS/MS mode, MRM transitions and collision energy are also obtained.
Applications in Pharmaceutical Analysis: GC-MS is the definitive technique for residual solvent analysis according to ICH Q3C guidelines. It is also employed for volatile impurity characterization, extractables and leachables analysis, and forensic investigation of product contamination events. Chemical ionization (CI) sources provide molecular ion confirmation through gentler ionization. GC-MS/MS using triple quadrupole or ion trap analyzers supports selective reaction monitoring for trace-level quantification in complex matrices.
Principle: LC-NMR couples HPLC separation with online NMR detection, enabling acquisition of NMR spectra for individual components of complex mixtures without isolation or purification. As each peak elutes, it passes through a specialized NMR flow probe where 1H and, in certain configurations, 13C or two-dimensional NMR spectra are recorded in real time. LC-SPE-NMR incorporates solid-phase extraction (SPE) cartridges between the chromatograph and NMR probe to trap and concentrate fractions from multiple injections, significantly improving sensitivity.
Detected Parameters: Chromatographic retention time (tR), chemical shift (δ, ppm), coupling constant (J, Hz), integration area, peak splitting pattern, two-dimensional correlation signals (COSY, HSQC, HMBC), signal-to-noise ratio (S/N), structural match factor.
Applications in Pharmaceutical Analysis: LC-NMR is particularly valuable for identifying degradation products and impurities in drug substances, where the structure of minor components must be determined to assess potential safety implications. It is also used for metabolite identification, natural product characterization, and rapid structural assignment of unexpected byproducts in reaction monitoring. Despite lower sensitivity compared to LC-MS, NMR data provide direct information about atom connectivity, stereochemistry, and conformation that mass spectrometry alone cannot deliver.
Principle: LC-HRMS couples chromatographic separation with the ultra-high resolving power and mass accuracy of Orbitrap or high-resolution TOF analyzers. High resolution enables separation of isobaric compounds with the same nominal mass but different exact masses. Data-independent acquisition (DIA) systematically fragments all ions without precursor selection, generating comprehensive fragment ion datasets that can be retrospectively interrogated for any compound of interest.
Detected Parameters: Chromatographic retention time (tR), accurate mass-to-charge ratio (m/z, 4-5 decimal places), resolution (R > 20,000-100,000), mass accuracy (<5 ppm, typically <1 ppm), fragment ion accurate mass, isotope distribution match score, mass defect value, peak area, signal-to-noise ratio (S/N).
Applications in Pharmaceutical Analysis: LC-HRMS is the cornerstone of non-targeted screening, comprehensive impurity profiling, and unknown identification. Mass defect filtering exploits characteristic mass defect patterns of drug-like molecules to selectively identify structurally related impurities and metabolites while filtering matrix interferences. For impurity profiling, LC-HRMS enables elemental formula determination of all detected peaks through accurate mass measurement, followed by structural characterization through fragmentation pattern interpretation.
Principle: GC-FTIR couples the separation capability of gas chromatography with the functional group specificity of infrared spectroscopy. As each component elutes from the GC column, it passes through a heated light pipe flow cell where it interacts with infrared radiation from an FTIR spectrometer. While mass spectrometry excels at determining molecular weight and providing fragmentation-based structural clues, FTIR definitively identifies the presence of functional groups such as carbonyls, hydroxyls, amines, and nitriles through their characteristic absorption bands.
Detected Parameters: Chromatographic retention time (tR), characteristic absorption wavenumber (cm-1), transmittance (T%) or absorbance (A), functional group assignment match factor, peak area, spectral similarity index (compared with reference spectra); with cryogenic trapping interfaces, signal-to-noise ratio (S/N) enhancement factor is also obtained.
Applications in Pharmaceutical Analysis: GC-FTIR is particularly valuable for analyzing volatile and semi-volatile mixtures where isomer identification is critical, such as residual solvent characterization, essential oil and flavor analysis, and volatile impurity identification. It is also employed in extractables and leachables studies to characterize volatile compounds released from packaging materials. When used in parallel with GC-MS, the combination of mass spectral and infrared data provides exceptionally confident compound identification through orthogonal structural information.
Principle: GC×GC subjects the entire sample to two independent separation mechanisms: a first-dimension non-polar capillary column separates primarily by volatility; a modulator periodically traps narrow fractions and injects them into a second-dimension short polar column for separation based on polarity or specific interactions. The resulting two-dimensional chromatogram distributes compounds according to both volatility and polarity, with peak capacities exceeding 10,000, far surpassing one-dimensional GC.
Detected Parameters: First-dimension retention time, second-dimension retention time, two-dimensional resolution, peak capacity, peak area and height in each dimension, spectral match factor, signal-to-noise ratio (S/N), class assignment (compounds of similar chemical class form characteristic distribution patterns in the 2D plot); with TOF-MS, m/z and fragment information for each peak are also obtained.
Applications in Pharmaceutical Analysis: GC×GC is applied to comprehensive residual solvent profiling, characterization of volatile impurities in large numbers, metabolomics studies targeting volatile metabolites, and forensic analysis of product contamination. The structured organization of peaks in the two-dimensional chromatogram facilitates identification of compound classes and detection of outliers that might be missed in one-dimensional analysis. Detection options include FID for universal quantification and TOF-MS for identification, with the fast scanning speed of TOF matching the narrow peak widths (50-200 milliseconds) produced by the second-dimension separation.
Principle: Multi-platform analytical strategies combine multiple independent analytical platforms in a logical sequence, with each technique providing complementary information from a different physicochemical perspective. A typical workflow might employ LC-HRMS for non-targeted screening and formula assignment, preparative HPLC for isolation of major impurities, NMR for definitive structural confirmation, and QQQ-MS for quantitative method development at the ppm level. Similarly, solid-state characterization might combine XRD, DSC, TGA, FTIR/Raman, and particle size analysis.
Detected Parameters: Each platform independently outputs its characteristic parameters: chromatographic retention time and peak area (LC), accurate mass and fragmentation pattern (HRMS), chemical shift and coupling constant (NMR), diffraction angle and relative intensity (XRD), phase transition temperature and enthalpy (DSC), mass loss percentage (TGA), particle size distribution D10/D50/D90 (particle size analysis). The core parameter of integrated strategies is cross-technique conclusion consistency.
Applications in Pharmaceutical Analysis: The most challenging pharmaceutical analytical problems often require integrated multi-platform strategies. Strategy design demands deep understanding of sample characteristics and the information content of each technique: physicochemical properties of analytes, complexity of the sample matrix, information required for specific development decisions, and available instrumentation and expertise. When executed effectively, integrated strategies deliver more complete, reliable, and actionable analytical data than any single technique, supporting confident decision-making and accelerating pharmaceutical development.
Table.5 Hyphenated and Integrated Technique Services.
| Service Name | Description | Inquiry |
| LC-MS Testing | Integrated liquid chromatography-mass spectrometry for separation, identification, and quantification. | Inquiry |
| GC-MS Testing | Gas chromatography-MS with electron ionization for volatile compound identification and residual solvent analysis. | Inquiry |
| LC-HRMS Testing | High-resolution LC-MS using Orbitrap or TOF for accurate mass determination and comprehensive impurity profiling. | Inquiry |
| LC-NMR Testing | Online chromatographic separation with NMR detection for definitive structural elucidation of mixture components. | Inquiry |
| GC-FTIR Testing | Gas chromatography with FTIR detection for functional group-specific identification of volatile compounds. | Inquiry |
| GC×GC Testing | Comprehensive two-dimensional gas chromatography for ultra-high-resolution separation of complex volatile mixtures. | Inquiry |
Thermal analysis and solid-state characterization techniques provide essential information about the physical properties of pharmaceutical materials, including their thermal stability, phase transitions, crystalline structure, and powder characteristics. These properties profoundly influence drug product performance, manufacturability, shelf life, and bioavailability.
Principle: TGA continuously records sample mass as a function of temperature or time under a controlled atmosphere as the sample is heated at a controlled rate, typically 5 to 20 degrees Celsius per minute. When solvent evaporation, dehydration, or thermal decomposition occurs, the microbalance captures mass loss events with microgram-level precision. The temperature-mass loss curve reveals sample composition information: mass loss below 150 degrees Celsius typically indicates residual solvents or adsorbed water; sharp loss at higher temperatures corresponds to thermal decomposition of organic compounds; residual mass at elevated temperatures may indicate inorganic ash or salt residues.
Detected Parameters: Onset decomposition temperature (Tonset), maximum mass loss rate temperature (Tmax), mass loss percentage at each stage, residual mass percentage, moisture content (%), residual solvent content (%), thermal decomposition kinetic parameters (activation energy Ea, pre-exponential factor A).
Applications in Pharmaceutical Analysis: TGA is employed for residual solvent and moisture content determination, supporting process optimization and compliance with ICH Q3C residual solvent limits. It is used to assess thermal stability of drug substances and define safe processing temperature limits, characterize stoichiometry of hydrates and solvates by correlating mass loss with theoretical water or solvent content, and evaluate drying process efficiency. Coupled with evolved gas analysis (TGA-MS or TGA-FTIR), the identity of volatilized species can be confirmed.
Principle: DSC measures heat flow into or out of a sample as it is heated or cooled at a controlled rate. When the sample undergoes phase transitions such as melting, crystallization, or glass transition, or chemical reactions, the heat flow difference relative to a reference is recorded as a thermogram. Endothermic peaks (downward) correspond to melting or volatilization, while exothermic peaks (upward) correspond to crystallization or decomposition. Modulated DSC (MDSC) applies a sinusoidal temperature oscillation superimposed on the linear heating ramp, separating reversible thermal events (melting, glass transition) from irreversible events (enthalpic relaxation, decomposition).
Detected Parameters: Melting temperature (Tm, °C), heat of fusion (ΔHf, J/g), crystallization temperature (Tc), glass transition temperature (Tg, °C), enthalpic relaxation peak, decomposition onset temperature (Td), heat capacity (Cp), purity percentage (via van't Hoff equation).
Applications in Pharmaceutical Analysis: DSC is the primary tool for solid-state characterization of pharmaceuticals. Melting temperature and heat of fusion are key identity and purity indicators, and different polymorphs exhibit distinct melting points and heats of fusion, enabling polymorph discrimination and polymorphic purity assessment. Glass transition temperature is critical for development and stability evaluation of amorphous solid dispersions. DSC is also used for excipient compatibility studies, where unexpected thermal events or shifts in transition temperatures in physical mixtures may indicate unfavorable drug-excipient interactions.
Principle: XRD is based on Bragg's law (nλ = 2d sinθ). When X-rays interact with crystalline materials, regularly spaced atomic planes within the crystal lattice diffract the X-rays, producing constructive interference peaks at specific angles. Peak positions correspond to interplanar spacings (d-values), and peak intensities reflect atomic arrangement within the unit cell. Each crystalline compound produces a unique powder diffraction pattern that serves as a fingerprint for identification.
Detected Parameters: Diffraction angle (2θ, °), interplanar spacing (d, Å), relative diffraction intensity (I/I0), crystallinity percentage, crystallite size (via Scherrer equation), polymorph composition percentage (quantitative multiphase analysis).
Applications in Pharmaceutical Analysis: XRD is the gold standard for polymorph characterization: identifying polymorphic forms of drug substance batches, detecting undesired polymorphs or amorphous content, monitoring polymorphic stability during storage and processing, and identifying new crystalline phases in salt and cocrystal screening. Quantitative phase analysis determines polymorphic mixture composition, supporting specification setting and control strategies for polymorph consistency in manufactured drug substance. Variable temperature and humidity accessories enable study of phase transitions under simulated storage and processing conditions.
Principle: Laser diffraction is the most widely applied method for particle size determination in pharmaceutical development. It measures the angular intensity distribution of light scattered by particles as a laser beam passes through a dispersed sample. Large particles scatter light at small angles, while small particles scatter at wider angles; the resulting diffraction pattern is mathematically inverted to produce a particle size distribution. Dynamic light scattering (DLS) measures the Brownian motion of particles in submicron and nanoparticle suspensions, relating the diffusion coefficient to hydrodynamic diameter through the Stokes-Einstein equation.
Detected Parameters: Volume mean diameter (D[4,3]), median diameter (D50), distribution span (Span = (D90-D10)/D50), D10/D90 values, specific surface area (m2/g), cumulative volume distribution curve (laser diffraction), Z-average diameter (nm) and polydispersity index (PDI) (DLS); SEM mode provides particle size, morphology parameters, and aggregation state images.
Applications in Pharmaceutical Analysis: Particle size distribution directly influences powder flowability, blending uniformity, compression behavior, dissolution performance, and content uniformity of the final dosage form. Laser diffraction covers a dynamic range of 0.1 to 2000 micrometers and is suitable for routine quality control and development studies. DLS is the preferred technique for nanosuspensions, liposomal formulations, polymeric nanoparticles, and protein aggregates. SEM provides visual information about particle shape, surface texture, and aggregation state, complementing the ensemble-averaged data from laser diffraction and DLS.
Principle: BET analysis is based on gas adsorption techniques. A degassed sample is exposed to a precisely controlled amount of inert gas, typically nitrogen or krypton, at cryogenic temperatures, and the quantity of gas adsorbed is measured as a function of relative pressure. The BET equation relates monolayer adsorption capacity to specific surface area (m2/g). The shape of the adsorption isotherm and the desorption branch provide information about pore size distribution, pore volume, and pore geometry.
Detected Parameters: Specific surface area (BET, m2/g), total pore volume (cm3/g), average pore diameter (nm), pore size distribution curve, BJH desorption pore size distribution, t-plot micropore volume and external surface area, BET constant (C value); mercury porosimetry extends analysis to larger mesopores and macropores.
Applications in Pharmaceutical Analysis: Surface area and porosity data are critical for multiple applications: understanding dissolution behavior of poorly soluble drugs (increased surface area enhances dissolution rate); characterizing performance of excipients such as silicas and carbonates that function as glidants, adsorbents, or dissolution modifiers; evaluating stability of amorphous solid dispersions where surface area influences moisture uptake and recrystallization tendency; and controlling quality of porous carriers used in controlled-release formulations. BET is also applied to characterization of freeze-dried products, where pore structure influences reconstitution time and cake appearance.
Table.6 Thermal and Solid-State Characterization Services.
| Service Name | Description | Inquiry |
| TGA Testing | Thermogravimetric analysis for thermal stability, residual solvent quantification, and moisture content determination. | Inquiry |
| DSC Testing | Differential scanning calorimetry for melting point, polymorph identification, glass transition, and excipient compatibility. | Inquiry |
| XRD Testing | X-ray powder diffraction for polymorph characterization, crystallinity assessment, and salt or cocrystal screening. | Inquiry |
| Elemental & Material Analysis Technologies | Comprehensive solid-state characterization including particle size, surface area, porosity, and elemental composition. | Inquiry |
From ultra-trace quantification to structural elucidation, we provide integrated chromatography, spectroscopy, and mass spectrometry platforms tailored for every stage of development.
BOC Sciences provides integrated instrumental analysis services, delivering reliable data, flexible analytical strategies, and responsive technical collaboration to support drug development projects from early discovery through commercial manufacturing. Our analytical capabilities span chromatography, spectroscopy, mass spectrometry, thermal analysis, and hyphenated techniques, enabling us to address diverse analytical challenges across all stages of drug development. The following sections illustrate how BOC Sciences creates value for our clients across three dimensions.
Every drug development project presents unique analytical requirements shaped by the molecular characteristics of the therapeutic candidate and the objectives of each development stage. In early discovery, analytical efforts focus on rapid structure confirmation and fundamental property assessment to support hit identification and lead optimization. During preclinical development, a more comprehensive analytical methodology framework is established to provide data for safety evaluation and formulation development. At the process development and manufacturing support stage, analytical methods must be fully validated for stable, reliable batch release and quality monitoring. BOC Sciences develops differentiated analytical strategies tailored to each molecule type, ensuring precise and efficient analytical support at every project stage.
Small Molecule Drug Analysis Support: From structure confirmation, purity assessment, and physicochemical property determination in early discovery, to bioanalysis, solid-state characterization, and forced degradation studies in preclinical development, through to validated method development, elemental impurity testing, and polymorph monitoring at commercial stage, BOC Sciences offers comprehensive chromatographic, mass spectrometric, spectroscopic, and thermal analysis solutions covering the entire small molecule lifecycle. Our platforms enable rapid synthesis product identification, lipophilicity and thermal stability assessment, quantification of residual solvents and heavy metals, and establishment of robust release testing systems, helping clients efficiently advance through every critical milestone from laboratory to manufacturing.
Monoclonal Antibody/ADC Analysis Support: BOC Sciences provides multi-dimensional characterization capabilities for biologics, spanning aggregate screening, charge variant analysis, and concentration determination in early discovery; sequence confirmation, glycosylation characterization, drug-to-antibody ratio (DAR) determination, and higher-order structure analysis in preclinical development; and batch release testing, host cell protein residual detection, and long-term stability monitoring at manufacturing stage. Our chromatography and mass spectrometry platforms precisely capture critical quality attribute changes in biopharmaceutical products, providing reliable data support for process optimization and product consistency.
Peptide/Oligonucleotide Analysis Support: Addressing the high synthetic byproduct burden and demanding structural characterization requirements of peptides and oligonucleotides, BOC Sciences provides rapid purity checking and molecular weight confirmation in early stages, comprehensive sequence confirmation, secondary structure evaluation, and modification site mapping in preclinical development, and validated impurity control methods plus content uniformity testing systems at manufacturing stage. Our analytical programs pay particular attention to counterion residuals, moisture control, and microbiological safety, ensuring products meet quality standards from research through commercialization.
Natural Product/Extract Analysis Support: Natural products feature complex compositions and significant batch-to-batch variability. BOC Sciences offers non-targeted component screening and rapid active ingredient identification in early discovery; fingerprint profile establishment and critical component quality control method development in preclinical stages; and batch consistency evaluation, heavy metal and pesticide residue screening, and characteristic fingerprint method validation at manufacturing stage. Our hyphenated technology platforms comprehensively resolve chemical components in complex matrices, helping clients establish traceable, reproducible quality control systems.
Nanoformulation/Liposome Analysis Support: The critical quality attributes of nanoformulations differ significantly from conventional pharmaceuticals. BOC Sciences provides particle size, surface charge, morphology, and encapsulation efficiency characterization in early stages; in vitro release studies, carrier integrity evaluation, and stability assessment in preclinical development; and stringent release testing including particle size distribution, Zeta potential, encapsulation efficiency, sterility, and endotoxin detection at manufacturing stage. Our analytical programs ensure nanomedicines have adequate quality control data at every step from formulation screening to commercial production.
Critical decisions in pharmaceutical analysis—whether releasing a batch of raw materials, establishing an impurity control limit, or selecting a formulation composition—must be grounded in reliable analytical conclusions. While individual analytical techniques excel in their domains, each inevitably has information blind spots: chromatography provides excellent separation but cannot directly reveal structure; mass spectrometry offers extraordinary sensitivity but may be affected by ionization efficiency differences; spectroscopy provides molecular fingerprints yet struggles to independently perform quantification in complex systems. These limitations become particularly pronounced when facing samples with complex compositions, strong matrix interferences, or analytes with closely related properties. BOC Sciences employs orthogonal multi-technique combination strategies, deploying chromatography, mass spectrometry, spectroscopy, thermal analysis, and solid-state characterization in logical sequences so that each technique provides complementary information from distinct physicochemical perspectives. Through cross-validation, we construct complete evidence chains that yield more reliable and defensible analytical conclusions. The following six typical scenarios demonstrate how multi-technique combinations play critical roles in practical analytical workflows.
Table.7 Multi-Technique Combination Strategies for Typical Analytical Scenarios.
| Analytical Scenario | First Dimension: Screening | Second Dimension: Confirmation/Structure Elucidation | Third Dimension: Quantification/Validation |
| Unknown Impurity Identification | LC-HRMS (accurate mass, formula assignment) | NMR (structure confirmation) / LC-NMR (online elucidation) | HPLC-UV / QQQ-MS (validated quantification) |
| Degradation Product Analysis | LC-HRMS (non-targeted screening) | FTIR/Raman (functional group confirmation) + TGA-DSC (thermal behavior correlation) | Stability-indicating HPLC (trend monitoring) |
| Biologics Aggregate Analysis | SEC-UV (distribution screening) | SEC-MALS (absolute molecular weight) + Native-MS (higher-order structure) | SEC-HPLC (release quantification) |
| Polymorph/Salt Form Confirmation | XRD (fingerprint pattern comparison) | DSC (melting behavior) + TGA (volatiles) + FTIR/Raman (spectroscopic confirmation) | Quantitative XRD / Raman spectroscopy (mixture composition) |
| Elemental Impurity Compliance | ICP-MS (multi-element ppt-level screening) | ICP-MS/MS (interference elimination, outlier confirmation) | Validated ICP-MS (routine release) |
| Residual Solvent Detection | GC-MS (library matching identification) | GC-FTIR (isomer differentiation) + spike recovery confirmation | GC-FID (validated quantitative release) |
The value of analytical data ultimately depends on whether it can be rapidly understood by R&D teams and translated into sound development decisions. BOC Sciences reports are structured around specific client questions, with chromatograms, spectra, and thermal analysis curves professionally annotated to highlight key features so that non-analytical scientists can quickly grasp essential findings. When unexpected results arise, our scientists provide in-depth interpretation, analyzing probable causes, project implications, and recommended follow-up actions, transforming reports from passive data delivery into active scientific dialogue that shortens the path from analysis to decision.
Table.8 BOC Sciences Core Instrumental Analysis Services.
| Service Name | Description | Inquiry |
| Analytical Technologies | Comprehensive analytical platforms spanning chromatography, spectroscopy, mass spectrometry, thermal analysis, and hyphenated techniques covering the full drug development workflow. | Inquiry |
| Method Development | Customized development and optimization of analytical methods for purity, potency, impurity profiling, and stability-indicating assays. | Inquiry |
| Structure Characterization | Multi-technique structure confirmation and unknown identification using NMR, MS, FTIR, XRD, and other platforms. | Inquiry |
| Purity Determination | High-precision purity assessment and impurity profiling based on HPLC, UHPLC, GC, and hyphenated detection techniques. | Inquiry |
| Stability Studies | Forced degradation and stability-indicating method development to support shelf-life determination and storage condition selection. | Inquiry |
| Impurity Isolation and Identification | Unknown impurity profiling, preparative isolation, and HRMS+NMR structural characterization. | Inquiry |
Our team of analytical scientists is ready to help you design efficient workflows, solve complex characterization challenges, and generate the reliable data your project demands.
If you have any questions or encounter issues on this page, please don't hesitate to reach out. Our support team is ready to assist you.
