In pharmaceutical chromatographic analysis, modes of calculation refer to the various methods and mathematical approaches used to quantify analytes, validate methods, and interpret chromatographic data. These calculations ensure accurate and reproducible results for quality control, method development, and regulatory compliance.
The following modes of calculation are widely used in chromatographic analysis:
Expert Tip: Both internal standard method and external standard methods are used for only quantitative analysis, such as assay.
In pharmaceutical chromatographic analysis, accurate and reliable quantification depends on key modes of calculation such as retention time, resolution, peak area, and calibration methods. These calculations ensure proper identification, separation, and quantification of compounds and play a vital role in quality control, method validation, and regulatory compliance. Mastery of these calculation modes is essential for generating reproducible and scientifically valid results in pharmaceutical analysis.
Related Article:
Relative Response Factor (RRF) in Pharmaceutical Analysis
Chromatographic calculations are used to identify, quantify, and ensure the purity of pharmaceutical compounds. They help assess method performance and validate results for regulatory compliance.
An internal standard corrects for variations in sample injection and analysis. It improves accuracy by comparing the analyte’s response to that of a known, stable compound added in a constant amount.
Concentration is typically determined using a calibration curve that relates peak area or height to known concentrations of the analyte.
Further Reading
Principles of HPLC (5) Qualitative and quantitative analysis
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