【摘要】 本实验采集了分布于云南广西共12个产地的三七样品,并采用湿法消解前处理方法,电感耦合高频等离子体发射光谱(ICP-AES)法测定其6种重金属元素As,Cu,Hg,Cd,Pb,Cr的含量。该结果按《药用植物及制剂外经贸绿色行业标准》规定计算,As超标率为32.4%,Cd超标率为29.7%,Cu,Hg,Pb均未超标。运用SPSS16.0软件对数据进行了聚类分析,并讨论了不同产地三七中重金属含量差异特点及可能原因。为三七药材的规范化种植,安全评价及三七道地性研究提供一定依据。更多还原

【Abstract】 Six heavy metals,including As,Cu,Hg,Cd,Pb and Cr in Panax notoginseng were determined by inductively coupled plasma atomic emission spectrometry( ICP-AES) combined with wet digestion method. The samples of P. notoginseng were collected in 12 different regions,including Yunnan and Guangxi Province. Green Standards of Foreign Trading Medicinal Plants &Preparations was used as the standard to evaluate the pollution status of As,Cu,Hg,Cd,Pb and Cr in P. notoginseng. The results showed that content of As and Cd exceeded the limit of the standard and the percentage was 32. 4% and 29. 7%,respectively,while Cu,Hg and Pb were all bellow the limit. The SPSS 16. 0 software was used to analyze the data. The occurrence of contained heavy metals has been discussed.更多还原