| ICP-OES法测定穿心莲药材中6种重金属元素溶出特性的研究 |
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| 引用本文： | 唐睿,李添朋,古学轼,李永健,杨屹.ICP-OES法测定穿心莲药材中6种重金属元素溶出特性的研究[J].光谱学与光谱分析,2010,30(2). |
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| 作者姓名： | 唐睿 李添朋 古学轼 李永健 杨屹 |
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| 作者单位： | 1. 广东药学院药科学院,广东,广州,510006
2. 北京化工大学理学院,北京,100029 |
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| 基金项目： | 国家自然科学基金项目(20375004)资助 |
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| 摘 要： | 以电感耦合等离子体发射光谱法(ICP-OES)同时测定了中药穿心莲中的As,Ba,Cd,Cr,Cu,Pb等6种重金属元素,方法相对标准偏差2.1%~4.6%,回收率92.0%~103.2%,灵敏度高、简单、准确可靠。考察了采用热回流提取、浸泡提取、超声辅助提取等不同提取方法和提取溶剂时,上述6种元素的溶出情况。结果表明,实验所用穿心莲药材中Ba的含量最高,其次为Cu和Cr,而As,Pb,Cd在药材中含量相对较低。随着提取溶剂中乙醇含量升高,Ba的溶出减少,而Cu、Cr的溶出增加,Cd在酸性溶液中溶出最多;提取方法则以冷浸法溶出重金属元素最少,使用纯水和碱水的热回流提取重金属元素溶出相对较多。以上差异可能与这些元素在药材中的存在形态有关。
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| 关 键 词： | 电感耦合等离子体原子发射光谱 穿心莲 重金属元素 溶出 |
Studies on Six Heavy Metal Elements Dissolution Characteristics of Andrographis Herb by ICP-OES |
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| TANG Rui,LI Tian-peng,GU Xue-shi,LI Yong-jian,YANG Yi.Studies on Six Heavy Metal Elements Dissolution Characteristics of Andrographis Herb by ICP-OES[J].Spectroscopy and Spectral Analysis,2010,30(2). |
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| Authors: | TANG Rui LI Tian-peng GU Xue-shi LI Yong-jian YANG Yi |
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| Institution: | TANG Rui1,LI Tian-peng1,GU Xue-shi1,LI Yong-jian1,YANG Yi21.School of Pharmacology,Guangdong Pharmaceutical University,Guangzhou 510006,China2.School of Science,Beijing University of Chemical Technology,Beijing 100029,China |
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| Abstract: | A simple and accurate method for the simultaneous determination of As,Ba,Cd,Cr,Cu and Pb in andrographis herb by inductively coupled plasma optical emission spectrometry(ICP-OES) was developed.The samples were digested by HNO3-HClO4.The digestion-determination method was evaluated with the relative standard deviations for all these elements between 2.1% and 4.6%,and the recoveries were between 92.0% and 103.2%.The measuring method was proved to be simple,reliable and highly sensitive.The dissolution charact... |
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| Keywords: | ICP-OES Andrographis herb Heavy metal elements Dissolution |
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