微波消解—ICP-MS混合模式测定动植物源食品中11种金属元素

发布时间：2018-05-09 19:00

  本文选题：微波消解 + 电感耦合等离子体质谱　； 参考：《分析试验室》2017年01期

【摘要】：建立了电感耦合等离子体质谱法(ICP-MS)混合模式测定动植物源食品中11种痕量元素的检测方法。样品经微波消解后,采用混合模式测定动植物源食品中As,Hg,Pb,Cd,Cr,Co,Ni,Cu,Zn,Fe,M n 11种元素,内标法定量。结果表明:11种元素的检出限分别在0.005~0.09μg/L之间;线性关系良好,相关系数r≥0.9995;相对标准偏差(RSD)为0.94%~7.2%;回收率在90.7%~103.5%之间;对不同食品类型的对照标准样品GBW10016、GBW10018、GBW10044、GBW10051进行测定,测定结果均在参考值范围。本方法适用于批量动植物源食品中多元素的同时测定。
[Abstract]:An inductively coupled plasma mass spectrometry (ICP-MS) method was developed for the determination of 11 trace elements in animal and plant foods. The samples were digested by microwave, and the 11 elements of As-HgHgPbPbCd-Cr-Co-NiCuZZn-FeNin in animal and plant food were determined by mixing mode and the internal standard quantity was determined. The results showed that the detection limit of the 11 elements was 0.005 ~ 0.09 渭 g / L, the linear relationship was good, the correlation coefficient was r 鈮，

本文编号：1867041