ICP-AES法测定无汞锌粉中砷锑铬镉铜铁镍铝含量

Determination of As Sb Cr Cd Cu Fe Ni and Al in Zinc Powder by ICP-AES

文章讨论了利用美国热电公司生产的全谱直读ICP光谱仪,用CID做检测器,直接测定无汞锌粉中的As、Sb、Cr、Cd、Cu、Fe、Ni、Al等元素含量的分析方法。对影响ICP分析可靠性的各种因素进行了考察,试验了试样基体及酸度对被测元素分析线强度的影响,优选了适宜的仪器测定参数和分析谱线,通过正确选择同步背景校正点和试样加标准的办法消除基体及共存元素的影响。经对大量样品的分析表明,该法简便快速,能满足分析测试的要求。

The paper describes the ICP-AES method for the determinations of As, Sb, Cr,Cd,Cu,Fe,Ni and Al in zinc powder. The concentration of basic element and inorganic acids upon the analytical lines of elements were discussed. The analytical lines and the working parameters were discussed and optimized. The effects of base element were correlated by background correction and matrix-matching technique. The test proved this method is simple, rapid and applicable.