DETERMINATION OF RUTIN IN GINGKO LEAF BY UV SPECTROPHOTOMETRY AFTER EXTRACTION WITH PEG 800-Tween 80-(NH_)_SO_ -H_ O_ AQUEOUS TWO-PHASE SYSTEM
DETERMINATION OF RUTIN IN GINGKO LEAF BY UV SPECTROPHOTOMETRY AFTER EXTRACTION WITH PEG 800-Tween 80-(NH_)_SO_ -H_ O_ AQUEOUS TWO-PHASE SYSTEM
PEG800-Tween80-(NH_)_SO_-H_O双水相萃取紫外分光光度法测定银杏叶中的芦丁