微波消解-原子吸收光谱法连续测定仿真饰品中铅镉镍含量  

Continuous determination of lead,cadmium and nickel in imitation jewelries by flame atomic absorption spectrometry with microwave-assisted digestion

作　　者：黄宗平[1] 黄丽[1] 蓝光琳[1] 林伟靖[1] 赖添岳[1] 董清木[1] 王鸿辉[1] 

机构地区：[1]厦门出入境检验检疫局技术中心,厦门361012

出　　处：《分析试验室》2012年第2期29-32,共4页Chinese Journal of Analysis Laboratory

基　　金：国家质检总局科技计划项目(2009IK075)资助

摘　　要：采用HNO3-HF-HCl酸体系消解样品,火焰原子吸收光谱法连续测定非金属材质仿真饰品中的铅、镉和镍。优化了仪器工作参数和消解条件,进行了共存离子的干扰试验。方法检出限分别为铅5.7 mg/kg、镉0.3 mg/kg、镍3.5 mg/kg。实际样品测定的相对标准偏差(n=6)为1.6%～5.2%,回收率为86.0%～105.8%。Continuous determination of trace amounts of lead,cadmium and nickel in nonmetal materials of imitation jewelries was developed by FAAS with microwave assisted HNO3-HF-HCl digestion.The working parameters and digestive conditions were optimized.The effects of concomitant ions and precisions were studied.The method detection limits were 5.7,0.3 and 3.5 mg/kg for Pb,Cd and Ni,respectively.The practical samples were determined,the RSDs were 1.6%～5.2%（n=6）,and the recoveries of the above elements ranged from 86.0% to 105.8%.

关 键 词：火焰原子吸收光谱法 微波消解 仿真饰品 铅 镉 镍 

分 类 号：O657.3[理学—分析化学]