| ICP-MS测定中药煎制前后8种重金属元素的含量及溶出率 |
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| 引用本文： | 罗艳,黄文琦,龙智翔,邓敏军.ICP-MS测定中药煎制前后8种重金属元素的含量及溶出率[J].光谱实验室,2012,29(2):925-928. |
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| 作者姓名： | 罗艳 黄文琦 龙智翔 邓敏军 |
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| 作者单位： | 1. 广西壮族自治区分析测试研究中心无机室,南宁市星湖路32号,530022
2. 广西壮族自治区环境监测中心站综合室,南宁市教育路5号,530022 |
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| 基金项目： | 广西壮族自治区直属公益性科研院所基本科研业务费专项项目(2009ACZ01) |
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| 摘 要： | 建立电感耦合等离子体-质谱法(ICP-MS)测定5种药材及其水煎液中8种重金属元素Pb、Cd、Cr、Cu、As、Hg、Sb、Sn含量的方法。使用微波消解处理样品,研究并优化了微波消解条件,对电感耦合等离子体-质谱仪的各项技术参数进行了选择。方法表明,8种元素的检出限小于等于0.003μg/L,精密度在1.3%—3.0%,药材加标回收率在93.6%—100.2%,药材水煎液加标回收率在94.2%—103.5%,煎煮前后药材重金属溶出率0%—33.33%,表明中药煎煮过程重金属元素不易溶出。
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| 关 键 词： | 电感耦合等离子体-质谱法 微波消解 中药 水煎液 重金属 |
Contents and Dissolutions of 8 Heavy Metals in Before and After Decoctions of Traditional Chinese Medicines by ICP-MS |
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| LUO Yan
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HUANG Wen-Qi
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LONG Zhi-Xiang
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DENG Min-Jun.Contents and Dissolutions of 8 Heavy Metals in Before and After Decoctions of Traditional Chinese Medicines by ICP-MS[J].Chinese Journal of Spectroscopy Laboratory,2012,29(2):925-928. |
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| Authors: | LUO Yan HUANG Wen-Qi LONG Zhi-Xiang DENG Min-Jun |
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| Institution: | LUO Yan HUANG Wen-Qi LONG Zhi-Xiang DENG Min-Juna(Inorganic Lab of Guangxi Research Center of Testing and Analysis,Nanning 530022,P.R.China)a(Integrated Department of Guangxi Province Environmental Monitoring Centre,Nanning 530022,P.R.China) |
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| Abstract: | A method was established for the determination of 8 heavy metals such as Pb,Cd,Cr,Cu,As,Hg,Sb,Sn in five traditional Chinese medicines and their respective decoctions by inductively coupled plasma mass spectrometry(ICP-MS) with microwave digestion.The microwave digestion conditions and the parameters of ICP-MS were optimized.Detection limits of all elements were lower than or equal to 0.003μg/L,and precisions were between 1.3% and 3.0%.The recoveries for Chinese traditional medicines were between 93.6%—100.2%,and recoveries of decoctions were between 94.2%—103.5%.Before and after decocting,the extractive rates were less than 33.33%,which showed the heavy metal elements were difficult to decoct. |
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| Keywords: | ICP-MS Microwave Assisted Digestion Traditional Chinese Medicine Decoction Heavy Metal |
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