电感耦合等离子体质谱法(ICP-MS)测定化妆品中铍、铬、砷、镉、碲、钕、铊、铅  

Determination of Be,Cr,As,Cd,Te,Nd,Tl and Pb in Cosmetics by ICP-MS

作　　者：赵子剑[1] 张伟建[1] 

机构地区：[1]怀化学院,湖南怀化418008

出　　处：《中国无机分析化学》2015年第2期9-11,共3页Chinese Journal of Inorganic Analytical Chemistry

基　　金：民族药用植物资源研究与利用湖南省重点实验室项目(HHUW2014-73);怀化学院新药研究所资助项目(HHUW2014-21)资助

摘　　要：建立了化妆品中铍、铬、砷、镉、碲、钕、铊、铅8种有害元素的测定方法,样品采用微波消解,以钇、锂、铟、铋为测定的内标元素,用电感耦合等离子体质谱法测定,结果表明,各元素和内标元素在一定浓度范围内的质量数比值均与浓度呈良好的线性关系,线性方程的相关系数均大于0.999 8,平均加标回收率为95%~104%,相对标准偏差（RSD）均小于3%。方法灵敏度高,准确,可为化妆品中上述元素的限量检查提供参考。A method for simultaneous determination of eight trace elements including Be, Cr, As, Cd, Te, Nd, T1 and Pb in cosmetics was established. The samples were first decomposed by microwave digestion and then determined by inductively coupled plasma mass spectrometry （ ICP-MS ） with Y, Li, In and Bi as internal standard elements. The results indicated that a good linear relationship between the mass ratio of the measured and internal standard elements and concentration, and the correlation coefficients were larger than 0. 999 8. The recoveries were from 95% to 104% ,and the relative standard deviations were less than 3%. The method has high sensitivity and good accuracy, and can give a reference for limit test of the above-mentioned elements in cosmetics.

关 键 词：电感耦合等离子体质谱法 化妆品 痕量元素 微波消解法 

分 类 号：O657.63[理学—分析化学] TH843[理学—化学]