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微波消解-电感耦合等离子体质谱法测定生物样品中14个微量元素
引用本文:刘洪青,孙月婷,时晓露,章勇.微波消解-电感耦合等离子体质谱法测定生物样品中14个微量元素[J].岩矿测试,2008,27(6):427-430.
作者姓名:刘洪青  孙月婷  时晓露  章勇
作者单位:安徽省地质实验研究所,安徽,合肥,230001
摘    要:利用微波消解技术使生物样品的前处理过程简单快捷,消解效果完全满足测定要求。消解溶液用电感耦合等离子体质谱法同时测定生物样品中14个微量元素铜、铅、锌、镉、钴、铬、镍、锂、钼、硼、铍、钍、铊、铀。通过对仪器工作条件的优化实验,确定了微波消解和质谱测量的条件。对大米和圆白菜国家一级标准物质样品进行测定,结果与标准值相符。各元素4次测定的相对标准偏差(RSD)小于6%。

关 键 词:电感耦合等离子体质谱法  微波消解  微量元素  生物标样
收稿时间:2008/4/15 0:00:00
修稿时间:2008/6/20 0:00:00

Determination of 14 Micro-amount of Elements in Biological Samples by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion
LIU Hong-qing,SUN Yue-ting,SHI Xiao-lu and ZHANG Yong.Determination of 14 Micro-amount of Elements in Biological Samples by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion[J].Rock and Mineral Analysis,2008,27(6):427-430.
Authors:LIU Hong-qing  SUN Yue-ting  SHI Xiao-lu and ZHANG Yong
Institution:Anhui Research Institute of Geological Experiment;Anhui Research Institute of Geological Experiment;Anhui Research Institute of Geological Experiment;Anhui Research Institute of Geological Experiment
Abstract:Microwave digestion simplifies the pretreatment of biological samples with satisfactory digestion effect.Combined with microwave digestion,14 micro-amount of elements including Cu,Pb,Zn,Cd,Co,Cr,Ni,Li,Mo,B,Be,Th,Tl,U were determined by inductively coupled plasma-mass spectrometry(ICP-MS).Analytical conditions of microwave digestion and ICP-MS measurement were optimized through experiments.The analytical results for rice and cabbage National Standard Reference materials are in agreement with certified values with precision of less than 6%RSD(n=4).
Keywords:inductively coupled plasma-mass spectrometry(ICP-MS)  microwave digestion  micro-amount of element  biological National Standard Reference material
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