Use of High-Performance Thin Layer Chromatography by the American Herbal Pharmacopoeia

a high-performance thin-layer chromatography method for quantitative determination of quercetin in herbal products

Quantitative Estimation of Efavirenz by High Performance Thin Layer Chromatography

A simple, accurate, and precise HPTLC method has been developed and validated for the estimation of efavirenz from bulk drug and capsule formulations. The separation was achieved on TLC plates using an appropriate solvent system. The spots so developed were densometrically scanned at 247 nm. The linearity of the method was found to be within the concentration range of 1-40 μg/ml. The validation...

Qualitative Metabolism Assessment Using High Performance Thin Layer Chromatography

High-performance thin layer chromatography for quality control of multicomponent herbal drugs: example of cangzhu xianglian san.

Due to their complexity, multicomponent herbal drugs pose enormous analytical challenges for quality control (QC). Although they may have traditionally been used for hundreds of years, the information about their chemical composition is often still limited. Selecting suitable markers to monitor the identity and potency of the mixture is, therefore, difficult. There is also the possibility of na...

Identification of Articles of Botanical Origin by High- Performance Thin-layer Chromatography Procedure

1064 Identification of Articles of Botanical Origin by High-Performance ThinLayer Chromatography Procedure. High-performance thin-layer chromatography (HPTLC) is widely used for botanical identification. Variability of the chromatographic conditions has the potential to significantly impact the results. This informational general chapter describes, with illustrations, the need to control the re...