Spectrometers
Spectrometers are critical analytical instruments used to measure and analyze the interaction of light with substances, enabling accurate identification, quantification, and purity assessment of pharmaceutical compounds. Pharmaco Global offers spectrometers for pharmaceutical analysis designed for high analytical accuracy, reliable detection, and compliance with regulatory standards.
These systems are used across quality control laboratories, research environments, and formulation processes, supporting multi-parameter analysis and continuous operation. Their precision and stability ensure consistent results, helping maintain product quality, safety, and GMP-compliant performance in pharmaceutical manufacturing.
Frequently Asked Questions
Pharmaceutical labs use UV-Vis (quantitative assay, impurity testing, dissolution), FTIR (raw material ID testing), NIR (at-line content uniformity, blend monitoring), Raman (polymorphism detection), and ICP-OES/ICP-MS (elemental impurity analysis per ICH Q3D). All require IQ/OQ/PQ qualification and calibration per USP .
UV-Vis measures light absorbance at specific wavelengths to quantify drug concentrations per Beer-Lambert law. Used in pharmaceutical QC for drug assay, impurity quantification (USP/EP monographs), dissolution sample analysis, identification testing, and stability studies — widely used due to its speed, sensitivity, and minimal sample preparation requirements.
FTIR identifies compounds via their unique infrared absorption fingerprint. Its primary pharmaceutical use is raw material identification (ID testing) of incoming APIs and excipients per USP and EP 2.2.24. It also detects API polymorphic forms, screens for counterfeits, and supports cleaning verification by surface and swab sampling.
NIR provides rapid, non-destructive analysis of O-H, N-H, and C-H bond overtones. Used in pharmaceutical manufacturing for at-line/inline content uniformity testing, moisture determination during fluid bed drying, blend endpoint monitoring, tablet coating analysis, and raw material identification — supporting Process Analytical Technology (PAT) and continuous manufacturing strategies.
USP and EP 2.2.25 require: wavelength accuracy (±1 nm UV, ±2 nm visible) using holmium oxide or didymium filters; photometric accuracy using potassium dichromate references; stray light <0.1%T; and resolution tested using benzene vapour spectrum. All parameters are verified at OQ and during periodic instrument performance verification.
IQ confirms installation environment, software version, and documentation. OQ verifies pharmacopoeial performance: wavelength accuracy, photometric accuracy, stray light, and resolution for UV-Vis; wavenumber accuracy and resolution for FTIR. PQ demonstrates ongoing performance via system suit
Yes. UV-Vis measures drug concentration in dissolution media at the drug's characteristic wavelength at defined time points — a standard detection method for USP dissolution testing. Fibre-optic UV-Vis probes enable real-time, in-situ dissolution profiling without manual sampling, providing richer data for formulation development and bioequivalence studies.
Single-beam: full light passes sequentially through sample and reference — simpler, lower cost, but susceptible to lamp fluctuations between readings. Double-beam: splits light to measure sample and reference simultaneously — compensating for lamp drift in real time, providing greater accuracy and reproducibility essential for quantitative pharmaceutical QC analysis.
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