金银花水浸泡液中的重金属含量分析及其人体健康风险评价

选用产自山东平邑流峪镇的金银花作为研究对象，研究其原药材及水浸泡液中的重金属含量并分析其水浸泡液中的Pb、Cd、Hg、As对人体健康产生的风险。采用微波消解法对样品进行前处理，用ICP MS法测定金银花原药材及水浸泡液中的Pb、Cd、Cu、Ni、Cr、Mn含量，采用原子荧光法测定金银花原药材及水浸泡液中的Hg、As含量。结果表明：金银花原药材中的Pb、Cd、Hg、As、Cu含量均未超过《药用植物及制剂外经贸绿色行业标准》；10 g金银花500 mL水浸泡液中的Pb、Cd、Cu、Hg、As、Cr的含量均远远低于《地下水环境质量标准》III类水质限值要求，但Ni、Mn超标严重，超标系数分别为1.23和5.91；若每日使用10 g金银花泡水饮用，其摄入的Pb、Cd、Hg、As分别占最大日允许摄入量(ADI)的0.63%、0.40%、0.09%和0.09%，所占比例较小，不会给人体健康带来太大风险。

Heavy metal content analysis and human health risk assessment for honeysuckle soaking solution

We investigated heavy metal concentrations of honeysuckle and analyzed the risk of Pb,Cd,Hg and As to human health in its soaking solution with the honeysuckle from Liuyu Town of Shandong province as subjects.We preprocessed its samples by microwave-digestion method.We determined the concentrations of Pb,Cd,Cu,Ni,Cr and Mn by ICP-MS.We also determined the contents of Hg and As with AFP in soaking solution.Results indicate that the contents of Pb,Cd,Hg,As and Cu do not exceed the limits defined by ＂Hygienic Standard of Green Trade Standards of Importing ＆ Exporting Medicinal Plants ＆ Preparations＂.The contents of Pb,Cd,Cu,Hg,As and Cr in the soaking solution （10 g honeysuckle soaked in 500 mL water） are much lower than the thresholds of class Ⅲ water quality described by ＂Environmental Quality Standard for Ground Water＂.However,the contents of Ni and Mn are greatly higher than their standards,exceed indexes of 1.23 and 5.91.Daily intake amount of Pb,Cd,Hg and As only accounts for 0.63％,0.40％,0.09％ and 0.09％ of ADI （Acceptable Daily Intake）.Drinking of honeysuckle soaking solution can pose little human health risk.