Comparison of Two Spectrophotometric Methods for Quantifying Total Hydroxycinnamic Acids in Coneflower (Echinacea purpurea) Preparations Journal title: Journal of Herbal Drugs Authors: Hossein Mahdavi; Mohammad Reza Naderi; Mohammad Hossein Esmaeili Subject(s): Medicine, Agricultural Science, Biotechnology, Botany, Genetics, Plant Sciences, Marketing, Pharmacology, Toxicology
