国产微波消解仪在检测化妆品重金属元素中的应用  

Application of domestic microwave digestor to heavy metal determination in cosmetics

作　　者：云环[1] 刘萤[1] 高峰[1] 刘鑫[1] 刘来福[1] 尚士进[1] 范斐[1] 金晓静 齐国光 Yun Huan Liu Ying Gao Feng Liu Xin Liu Laifu Shang Shijin Fan Fei Jin Xiaojing Qi Guoguang(BeijingEntry-Exit Inspection and Quarantine Bureau, Beijing 100026, China Preekem Scientific Instruments Co. ,Ltd. , Shanghai 201108, China)

机构地区：[1]北京出入境检验检疫局检验检疫技术中心,北京100026 [2]上海屹尧仪器科技发展有限公司,上海201108

出　　处：《分析仪器》2017年第5期159-161,共3页Analytical Instrumentation

基　　金：国家重大科学仪器开发专项资助(2011YQ140149)

摘　　要：采用快速高效的微波消解前处理方法,结合电感耦合等离子体质谱对化妆品标准物质中铅、镉、硒等元素进行测定,结果表明,选用HNO_3∶H_2O_2=6∶1的酸配比消解效果最好,所得各元素均在质控范围内,回收率均在90%~109%之间,RSD(n=6)均在2.4%~3.1%之间。超高压的微波前处理结合电感耦合等离子体质谱的方法,具有耐压能力强,操作快速简便等优点,能够满足化妆品等复杂样品的日常监测需求。Lead,cadmium and selenium in cosmetics were determined by ICP-MS combined with microwave assisted digestion based on domestic digestor. The results showed that HNO3 ：H2O2 =6 ： 1 was the best ratio of mixed acid , and all the elements were within the scope of reference values. The recoveries were between 90%-109%, and the RSD（n=6） were between 2.4%-3.1%. The method can meet the need of daily monitoring of cosmetics samples.

关 键 词：超高压微波消解 ICP-MS 化妆品 重金属 

分 类 号：O657.31[理学—分析化学] TQ658[理学—化学]