Instrumental Planar Chromatographic Determination of Benzodiazepines: Comparison with Liquid Chromatography and Gas Chromatography
2001
Diazepam, chlordiazepoxide, and midazolam are determined by high-perfromance, thin-layer chromatography (HPTLC). Results are compared with those obtained by liquid chromatography (LC) and gas chromatography (GC). Analytical conditions for all the methods are also described. Validation parameters for linearity, precision, detection, and quantitative limits are informed. Correlation study of HPTLC with LC and GC gave a correlation factor between 0.98 and 0.99. The obtained results showed that HPTLC, LC, and GC techniques are comparable for determination of such benzodiazepins in the requested working range to be analyzed in raw materials.
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