Application of Differential Dervative Spectrophotometry to the Determination of Total Chlorogenic Acid in Lonicera japonica Thunb. and Yinqiao Jiedu Pian
Abstract:The total chlorogenic acid in Lonicera japonica and Yinqiao Jiedu Plan was determined by differential derivative spectrophotometry in this paper.Ouantitative analysis this component in eight mixtures of medicinal herbs can be done withont any separation. The average recovery of total chlorogenic acid is 100.40±1.82%(CV).The method features good reproducibility, favorable stability and high sensitivity.