Abstract
A high-performance thin layer chromatographic densitometric method for the analysis of swertiamarin in 60% methanolic extract of Enicostemma littorale and commercial formulations has been developed and validated in this study. Swertiamarin was separated on aluminium-backed silica gel 60 F254 plates using ethyl acetate : methanol : water (77 : 15 : 8)% v/v as the mobile phase. This system was found to give a compact spot of swertiamarin at Rf value 0.36 ± 0.01. The limit of detection and limit of quantification were found to be 31.25 and 103.12 ng spot−1, respectively. The proposed method was employed with a high degree of precision and accuracy for the estimation of swertiamarin in methanolic extract of Enicostemma littorale and in commercial formulations.
Acknowledgements
The authors are thankful to Ranbaxy Research Laboratory, Gurgaon, India, for providing facilities for the completion of this research project.