电感耦合等离子体质谱(ICP-MS)法测定大米及米粉类食品中有害元素

Determination of the Harmful Elements in Rice and Rice Flour Noodles by Inductively Coupled Plasma Mass Spectrometry

DOI：10.3969/j.issn.1673-1689.2012.07.016

中文关键词: 电感耦合等离子体质谱仪(ICP-MS) 大米 米粉

英文关键词: ICP-MS rice rice flour noodles

基金项目:

摘要点击次数: 226

全文下载次数: 1217

中文摘要:

建立了用ICP-MS法同时测定大米及米粉类食品中铅、砷、铬、镉、锑5种微量元素的测定方法。采用Ge、In、Bi、Sc 4种元素作为内标元素进行外部校正的方法,样品经微波消解处理上机。对照分析了标准物质。对于所有分析元素校正曲线的相关系数均在0.999 0以上。回收率为81.3%～99.2%,相对标准偏差为1.35%～3.16%(n=6)。

英文摘要:

In this study,a method was developed for the determination of Pb,As,Cr,Cd and Sb in the Rice and Rice Flour Noodles by inductively coupled plasma-mass spectrometry(ICP-MS).Calibration with Ge,In,Bi,Sc,as the internal standard was used.The samples were digested using amicrowave oven.The results of the analysis of reference material were compared with certified values.For all analyte elements,the correlation coefficient of the calibration curves were higher than 0.9990,there coveries at the range of 81.3% ~99.2% range,the relative standard at the range of 1.35%~3.16% range(n=6).

查看全文 查看/发表评论 下载PDF阅读器