ICP-MS测定玉米浆干粉中的As、Cd、Cr、Cu、Pb、Se和Zn

Determination of As,Cd,Cr,Cu,Pb,Se and Zn in Dried Corn Steep Liquor Powder by ICP-MS

本文用电感耦合等离子质谱法测定了玉米浆干粉中的A s、Cd、C r、Cu、Pb、Se和Zn等7种元素的含量,以In作为内标进行基体效应的补偿,方法快速灵敏,回收率为86%—112%,相对标准偏差小于5.0%,结果令人满意。

The 7 kinds of trace element, As,Cd ,Cr,Cu,Pb,Se and Zn in Dried Corn steep liquor powder were determined by ICP-MS. The recoveries of the elements detected were in the range of 86%-112% with the relative standard deviations of less than 5.0%.