电感耦合等离子体原子发射光谱法同时测定金属饰品中铅、镉、铬、汞、锑、砷、硒、钡、镍含量  

Simultaneous determination of Pb,Cd,Cr,Hg,Sb,As,Se,Ba and Ni by ICP-AES in metal jewelry

作　　者：陈德文[1] 汪欢晃 刘康伟[1] 朱红星[1] 陶新姚 

机构地区：[1]国家日用小商品质量监督检验中心,浙江义乌322000 [2]浙江新光饰品股份有限公司,浙江义乌322000

出　　处：《化学试剂》2011年第10期916-918,共3页Chemical Reagents

基　　金：浙江省质量技术监督局科研计划"饰品的安全性及有害元素分析与检测技术研究"资助项目(2008-0240)

摘　　要：采用电感耦合等离子体原子发射光谱法同时测定金属饰品中铅、镉、铬、汞、锑、砷、硒、钡、镍的含量。用体积比为3∶1的浓硝酸和浓盐酸微波溶解样品,研究了样品的消解方法、消解介质、分析谱线及工作参数等对检测结果的影响。方法的检测限(mg/L):铅0.06、镉0.009、铬0.002、汞0.04、砷0.02、硒0.01、钡0.01、锑0.008、镍0.001,该方法快速简便,方法的回收率和精密度分别为96%～103%和0.48%～1.23%。The simultaneous determination method of Pb,Cd,Cr,Hg,Sb,As,Se,Ba and Ni in metal Jewelry has been developed by ICP-AES.The sample was dissolved with HCl and HNO3.The factors such as method of dissolver,medium of dissolver,the selection of analytical wavelengths,the influence of instrument parameters such as auxiliary gas,analysis pump rate have been disscussed.The detection limits were 0.06 mg/L for Pb,0.009 mg/L for Cd,0.002 mg/L for Cr,0.04 mg/L for Hg,0.02 mg/L for As,0.01 mg/L for Se,0.01 mg/L for Ba,0.008 mg/L for Sb,0.001 mg/L for Ni.The recovery rates and precision are in the range of 96%～103% and 0.48%～1.23% respectively.The method is simple and fast with satisfactory results of real samples,convenient and suitable for daily inspection of metal jewelry.

关 键 词：电感耦合等离子体原子发射光谱法 金属饰品 测定 含量 

分 类 号：O657.31[理学—分析化学]