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论述了云南27种菊科中草药及其水提取物中铅含量的特征.菊科植物及水提物中铅含量的频数分布为正偏态,两者的相关系数r=0.09,未呈现显著的线性相关.提取率较高的山紫苑、佩兰、木香铅实际含量低;铅含量高的叶下花、狭叶兔耳风、臭灵丹提取率又较低,减少了人体对Pb的过量摄入.
The characteristics of lead content in 27 Chinese herbal medicines and their water extracts in Yunnan were discussed. The frequency distribution of lead in Compositae plants and water extracts was positively skewed. The correlation coefficient between the two was r=0.09, which did not show significant Linear correlation. Higher actual extraction rates of Aster, Perrin, and Woody lead are lower. The higher lead content leaves, narrow-leaf rabbit ears, and stinky dan extract have lower extraction rates, which reduces the body’s excess of Pb. Intake.