微波消解-ICP-AES法测定塑料中Pb和Cd  

DETERMINATION OF LEAD AND CADMIUM IN PLASTIC BY MICROWAVE DIGESTION-ICP-AES

作　　者：杜翠娟 

机构地区：[1]广东省电子电器产品监督检验所,广州510400

出　　处：《化学分析计量》2010年第6期69-70,共2页Chemical Analysis And Meterage

摘　　要：采用微波消解法进行溶样，以ICP—AES法测定塑料中Pb和Cd的含量。Pb、Cd的回收率分别为96．0％～102．0、93．3％～105．0％。Pb、Cd测定结果的相对标准偏差分别为0．567％、1．19％（n=10）。Ph和cd的检出限分别为0．02、0．005mg／L。该方法适用于多种塑料中Ph和Cd含量的快速分析。Lead and cadmium in plastic were analyzed by microwave digestion - ICP - AES. The recoveries of Pb and Cd were 96.0% - 102.0, 93.3% - 105.0% respectively. The RSD of Pb and Cd were 0. 567%, 1.19% （n = 10） respectively. The de- tection limits of Pb and Cd were 0.02, 0. 005 mg/L respectively. The resuhs showed that this method was accurate and could be used to analyze content of Pb and Cd in plastic materials.

关 键 词：微波消解 ICP—AES 塑料 PB Cd 

分 类 号：O657.31[理学—分析化学]