原子吸收光谱法测定涂料中可溶性镉和总镉  

Determination of Soluble Cadmium and Total Cadmium in Paints by Atomic Absorption Spectrometry

作　　者：曹文忠[1] 夏拥军[1] 张慧[1] 

机构地区：[1]张家港出入境检验检疫局

出　　处：《光谱实验室》2011年第1期157-160,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：建立了石墨炉原子吸收光谱法测定涂料中可溶性镉和总镉的方法。解决了涂料中镉的测定问题,探讨了样品的处理条件、基体改进剂的选择、共存元素干扰的消除以及仪器工作条件的优化。镉的线性范围为1.0—50.0μg/L,方法的检出限为0.32μg/L,回收率为85.0%—92.5%,精密度为2.85%—4.49%。The determination of soluble cadmium and total cadmium in paints by graphite furnace atomic absorption spectrometry was proposed.The sample treatment conditions,choice of matrix modifier,elimination of interference of coexistent elements,and optimization on working conditions of equipment were discussed.The linear range of Cd was 1.0—50.0μg/L,with detection limit of 0.32μg/L,recovery of 85.0%—92.5%,and precision of 2.85%—4.49%.

关 键 词：原子吸收光谱法 涂料 可溶性镉 总镉 

分 类 号：O657.31[理学—分析化学]