微波消解ICP-AES法测定黄铜儿童仿真饰品中的铅  

Determination of Pb in Children's Simulation Jewelry Made of Brass Alloy by ICP-AES with Microwave- assisted Digestion

作　　者：王瓒[1] 唐明[1] 费桂琴[1] 顾颖[1] 李敬[1] 洪锦清[1] 

机构地区：[1]江苏出入境检验检疫局轻工产品与儿童用品检测中心,江苏扬州225009

出　　处：《山东化工》2017年第2期52-53,共2页Shandong Chemical Industry

基　　金：江苏出入境检验检疫局科技计划资助的项目:"玩具材料中16种REACH高关注物质的ICP初筛";编号:2011KJ35

摘　　要：采用浓HNO_3微波消解样品,电感耦合等离子体原子发射光谱(ICP-AES)测定黄铜儿童仿真饰品中的铅元素的含量。样品中Pb元素的含量在0.01~10mg/L范围内与发射强度呈线性关系,线性相关系数大于0.9999。回收率在99.7%,样品测定结果的相对标准偏差小于5%(n=10),Pb元素的检出限为0.005 mg/L。该方法测定结果准确可靠,适用于黄铜儿童仿真饰品中铅的测定。Lead was analyzed by ICP - AES with HNO3 assisted with microwave. Linear relationship between emission intensity with the concentration of Pb element was 0.01mg/L - 10mg/L, linear correlation coefficients was larger than 0. 9999. The recovery of Pb was 99.7%. The RSD of testing of sample was below 5%. The detection limit of Pb was 0.005mg/L. The results showed that this method was accurate and could be used in testing of Pb in ehildren＇s simulation jewelry made of brass alloy.

关 键 词：ICP—AES 微波消解 黄铜 儿童仿真饰品 铅 

分 类 号：O657.31[理学—分析化学]