正己烷萃取-湿法消解-ICP-MS测定印刷电路板中有机锡  

Determination of Organotin in Printed Circuit Board by ICP-MS with n-Hexane Extraction and Nitric Acid Digestion

作　　者：赵泉[1] 萧达辉[1] 周明辉[1] 郑建国[1] 李政军[1] 钟志光[1] 

机构地区：[1]广东出入境检验检疫局,广州市天河区花城大道66号510623

出　　处：《光谱实验室》2010年第2期460-463,共4页Chinese Journal of Spectroscopy Laboratory

基　　金："十一五"科技支撑项目"人体安全重要技术标准研制"(2006BAK04A10)

摘　　要：利用正己烷萃取-湿法消解-电感耦合等离子体-质谱(ICP-MS)测定印刷电路板中的有机锡。对ICP-MS测定条件进行了最佳化的选择,选取铟作为内标物,实验表明无机锡不溶于正己烷中。与气相色谱质谱法(GC-MS)对比,本方法可实现有机锡的快速测定。该方法的回收率、精密度和检出限分别为85.6%—96.8%、2.6%—6.5%和0.5mg/kg。A method for the determination of organotin in printed circuit board by ICP-MS with n-hexane extraction and nitric acid digestion has been developed. The detection condition of ICP-MS was optimized and indium was selected as internal standard. Inorganotin can hardly be dissolved in n-hexane. ICP-MS method for the determination of organotin is more quickly and simple with satisfatory results than GC-MS method. The recovery rates,the precision and the detection limits of the method are 85.6%--96.8%,2.6%-6.5% and 0. 5mg/kg,respectively.

关 键 词：正己烷萃取 印刷电路板 有机锡 电感耦合等离子体-质谱 

分 类 号：O657.63[理学—分析化学]