Rapid Determination of Andrographolide and Dehydroandrographolide in Andrographis paniculata by HPLC-UV at Equal Absorption Wavelength Journal title: Journal of Experimental and Clinical Application of Chinese Medicine Authors: Qi Huang, Qinggui Lei, Da Li, Wenqing Li, Zhengming Qian Subject(s): Medicine, Research & Experimental, Pharmacology & Pharmacy, Integrative & Complementary Medicine