ICP-AES同时测定可食性包装材料中的铅、砷、镉和汞  

Determination of Edible Packaging Materials of Lead,Arsenic,Cadmium and Mercury by ICP-AES

作　　者：陈婷婷[1] 刘俊[2] 关明[1] 

机构地区：[1]新疆师范大学化学化工学院,乌鲁木齐830054 [2]新疆出入境检验检疫局技术中心,乌鲁木齐830063

出　　处：《食品工业》2016年第3期273-275,共3页The Food Industry

基　　金：新疆师范大学研究生科技创新项目基金资助(20142009);国家质检总局项目(2014IK258)

摘　　要：以硝酸作为消解液,采用电热消解-电感耦合等离子体原子发射光谱法（ICP-AES）同时测定可食性包装材料中的铅、砷、镉和汞含量。铅、砷、镉和汞的检出限分别为0.150,0.360,0.015和0.135 mg/kg,线性范围为0-2μg/m L,线性关系良好（R〉0.999）,相对标准偏差为1.76%-4.22%,平均加标回收率为82%-108%,该方法的精密度与准确度均满足测试要求,适用于可食性包装材料中铅、砷、镉和汞的同时测定。With nitric acid as a liquid, use electric heating digestion-inductively coupled plasma atomic emission spectrometry（ICP-AES） simultaneous determination of edible packaging materials lead, arsenic, cadmium and mercury. Lead, arsenic, cadmium and mercury detection limit were respectively 0.150, 0.360, 0.015 and 0.135 mg/kg. Linear range was 0-2 μg/m L, with a good relationship（R〉0.999）. The RSD was in the range of 1.76%-4.22% and the recoveries were in the range of 82%-108%. The accuracy and precision of this method could satisfy the requirements of the test, applicable to edible packaging materials in the simultaneous determination of lead, arsenic, cadmium and mercury.

关 键 词：电热消解 电感耦合等离子体原子发射光谱法 可食性包装材料 

分 类 号：O657.31[理学—分析化学] TS206.4[理学—化学]