Specificity
The specificity of the developed method for the analysis of Eupalitin 3-O- β-D-galactopyranoside in the extracts was ascertained by analysis of standard and sample. The six tested polyphenols in samples were confirmed by comparing the Rf value and spectra of the spot with that of the standard. The peak purity of individual compounds was assessed by analyzing the spectra at peak start, peak apex, and peak end positions of the band.