| ICP-MS同时测定谷类食物中18种微量元素的研究 |
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| 引用本文： | 孙梦寅,吴颖,姜洁,路勇,张卫民,何涛,王振.ICP-MS同时测定谷类食物中18种微量元素的研究[J].食品工业科技,2011(11):424-425,430. |
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| 作者姓名： | 孙梦寅 吴颖 姜洁 路勇 张卫民 何涛 王振 |
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| 作者单位： | 1. 北京市产品质量监督检验所,北京,100026
2. 北京市食品安全监控中心,北京,100041 |
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| 摘 要： | 目的：建立谷类食物中18种微量元素（89Y、139La、140Ce、141Pr、142Nd、152Sm、153Eu、158Gd、159Tb、163Dy、165Ho、166Er、169Tm、174Yb、175Lu、75As、208Pb、111Cd）电感耦合等离子体质谱（ICP-MS）的分析方法。方法：通过优化消解方法,使基质消解更完全,用ICP-MS进行分析,用混合内标校正基体干扰和漂移。结果：该法所有元素的检出限均小于30ng/kg,回收率介于92.35%～109.31%。结论：该法具有操作简便、快速、灵敏度高、准确性好和多种元素同时测定等优点。
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| 关 键 词： | 电感耦合等离子体质谱 微波消解 微量元素 |
Application of ICP-MS on simultaneous determination of 18 trace elements in grain |
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| SUN Meng-yin,WU Ying,JIANG Jie,LU Yong,ZHANG Wei-min,HE Tao,WANG Zhen.Application of ICP-MS on simultaneous determination of 18 trace elements in grain[J].Science and Technology of Food Industry,2011(11):424-425,430. |
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| Authors: | SUN Meng-yin WU Ying JIANG Jie LU Yong ZHANG Wei-min HE Tao WANG Zhen |
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| Affiliation: | SUN Meng-yin1,WU Ying1,JIANG Jie2,LU Yong2,ZHANG Wei-min2,HE Tao2,WANG Zhen2(1.Beijing Products Quality Supervision and Inspection Institute,Beijing 100026,China,2.Beijing food safety monitoring center,Beijing 100041,China) |
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| Abstract: | Objective:To develop a method for determination of 18 trace elements(89Y,139La,140Ce,141Pr,142Nd,152Sm,153Eu,158Gd,159Tb,163Dy,165Ho,166Er,169Tm,174Yb,175Lu,75As,208Pb,111Cd)in grain by ICP-MS.Methods:Optimized the condition of digestion,made the digestion complete,the samples were determined by ICP-MS which used mixed internal standard to correct matrix interference and signal drifting.Results:The range of detection limit of observed 18 trace elements were all below 30ng/kg,and recoveries 92.35% ~ 109.31%.... |
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| Keywords: | ICP-MS microwave digestion trace elements |
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