本文已被：浏览 328次 下载 0次
投稿时间：2014-11-20
投稿时间：2014-11-20
中文摘要: 建立微波消解-原子吸收光谱法测定仙草及其产品中铅、镉、铬、铜、铁、锌、锰7种微量元素的含量。样品经微波消解，无火焰法测定铅、镉、铬元素、火焰法测定铜、铁、锌、锰元素含量。所测元素标准曲线相关系数均≥0.998，回收率在85.9 %～110.0 %间，RSD均＜5 %。本研究建立的方法简便、准确、成本低廉，可用于仙草及其产品中铅、镉等7种元素含量的检测。
Abstract:A method for Determination of Pb，Cd，Cr，Cu，Fe，Zn and Mn in mesona chinensis benth and its processed product by Microwave digestion- Atomic absorption spectroscopy was developed. The Trace elements content in mesona chinensis benth and its processed product of lead，cadmium，chromium were detected by microwave digestion -AA Furance and the copper，iron，zinc，manganese were detected by microwave digestion-flame. The results showed that，the correlation coefficient of standard curve of the 7 elements were greater than 0.998，the recoveries were ranged from 85.9 % to 110 %，RSD were less 5 %.The methed had the advantages of simple，accurate，and low cost，wich can be used to detect the content of Pb，Cd，Cr，Cu，Fe，Zn and Mn in mesona chinensis benth and its processed product.
文章编号：201604033 中图分类号： 文献标志码：
基金项目:2013年度广西检验检疫局科技计划项目（第一批）（2013GXCIQ02）
| Author Name | Affiliation |
| HE Ri-an，XU Guang，CHEN Qi，LIU Jian-fa，LI Ai-li，CAO Jie | Comprehensive Technical Service Center of Qinzhou Entry-Exit Inspection and Quarantine Bureau，Qinzhou 535000，Guangxi，China |
引用文本：
津ICP备20000603号-1