Spectrophotometric determination of total lactones in Andrographis paniculata Nees

A spectrophotometric method for determination of total lactones in Andrographis paniculata was established by using dinitrobenzoic acid and potassium hydroxide solutions as colour forming agents. The absorbance of the solution was determined at 536 nm. The linearity range was 12-72 × 10-6 g.ml-1. Th...

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Bibliographic Details
Main Authors: Napaporn Jantakun, Penkae Wichitchote, Chantana Aromdee
Format: Article
Language:English
Published: Prince of Songkla University 2005-11-01
Series:Songklanakarin Journal of Science and Technology (SJST)
Subjects:
Online Access:http://www.sjst.psu.ac.th/journal/27-6-pdf/11-Andrographis-paniculata.pdf