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P. K. Chaudhuri and W. M. Daniewshi, “Unambigous Assignments of the 1H and 13C Chemical Shifts of the Major Bitter Principles of Sweria chiraita by 2D-NMR Study and Characterization of Other Constituents,” Polish Journal of Chemistry, Vol. 69, 1996, pp. 1514-1519.

has been cited by the following article:

• TITLE: Determination of Ursolic Acid a Biomarker in Different Swertia Species through High Performance Thin Layer Chromatography

  AUTHORS: Mansi Gupta, Deepa Bisht, Sayyada Khatoon, Sharad Srivastava, Ajay Kumar Singh Rawat

  KEYWORDS: Ursolic Acid, Swertia Species, HPTLC

  JOURNAL NAME: Chinese Medicine, Vol.2 No.4, December 8, 2011

  ABSTRACT: A simple highly precise method has been established for the determination of ursolic acid in three species of Swertia viz. S. angustifolia, S. paniculata, and S. alata. The assay combines identification and quantification of the analyte on silica gel 60GF254 HPTLC plates with visualization under UV light and scanning at 510 nm.