Method Validation
Chromatogen Analytical Laboratory provides comprehensive, regulatory-compliant analytical method validation services to ensure your testing procedures are suitable for their intended purpose. Operating in accordance with ICH guidelines (Q2(R1)/Q2(R2)), USP, IP, EP, BP, and JP pharmacopeial standards, our expert scientific team evaluates and documents every performance parameter required for global regulatory submissions and routine quality control.
Standard ICH Validation Parameters
We design rigorous validation protocols tailored to the specific category of your testing method—whether for API release, finished product assay, trace impurity quantification, or residual solvent analysis.
1. Specificity & Selectivity
Complete resolution of target analytes from potential matrix interferences, degradation products, synthetic intermediates, and excipients.
Forced degradation studies (stress testing under heat, light, acid, base, and oxidative conditions) to demonstrate stability-indicating capability.
2. Linearity, Range & Sensitivity
Linearity & Range: Establishment of dynamic concentration ranges with high correlation coefficients ($R^2 \ge 0.999$) across multi-point calibration curves.
Limit of Detection (LOD) & Limit of Quantitation (LOQ): Precise determination of trace-level sensitivity using signal-to-noise ratio ($S/N$) calculations or standard deviation approaches, critical for genotoxic impurities and nitrosamines.
3. Accuracy & Precision
Accuracy (Recovery): Evaluation across low, medium, and high concentration levels to verify true value recovery in complex sample matrices.
Repeatability (Intra-day Precision): Multiple replicate measurements performed under identical operational conditions.
Intermediate Precision (Inter-day Precision): Verification of method consistency across different analysts, days, and instrument setups within our Mysuru laboratory.
4. Robustness & Solution Stability
Robustness: Testing method resilience against deliberate, minor variations in parameters such as column temperature, mobile phase pH, flow rate, and reagent lots.
Solution Stability: Determining exact holding times and storage conditions for mobile phases, standard solutions, and test sample preparations.
Instrument Platforms Supported
Our facility utilizes state-of-the-art chromatographic and spectroscopic systems to validate a wide array of testing methods:
High-Performance Liquid Chromatography (HPLC / UHPLC): DAD, ELSD, and MS detection configurations for purity assays, related substances, and chiral separations.
Gas Chromatography (GC): GC-FID and Headspace-GC for residual solvent analysis and volatile impurities.
Mass Spectrometry (HRMS & LC-MS/MS): Ultra-trace quantification and validation of complex organic compounds.
Spectroscopy: UV-Vis and FTIR validation for raw material identification and quantitative testing.
Comprehensive Validation Deliverables
Partnering with Chromatogen guarantees complete data integrity and regulatory readiness:
Custom Validation Protocols: Pre-approved protocols detailing target acceptance criteria, test parameters, and experimental designs.
Complete Raw Data & Chromatograms: Fully documented, traceable data packages complying with strict QA/QC standards.
Final Validation Report: A submission-ready summary report detailing all statistical results, acceptance criteria evaluations, and conclusion summaries.
The Chromatogen Advantage
Regulatory Integrity. Proven Reproducibility.
At Chromatogen, we bridge the gap between initial method development and commercial testing. Our validated methods provide the accuracy, precision, and compliance security needed for seamless technology transfer and hassle-free regulatory approvals.