电感耦合等离子体质谱测定孕烯醇酮中钯元素含量  

Determination of Palladium in Pprogesterone by Inductively Coupled Plasma Mass Spectrometry

作　　者：于磊 胡芳菲 宋永清 张晓 祝利红 Yu Lei;Hu Fangfei;Song Yongqing;Zhang Xiao;Zhu Lihong(Guobiao(Beijing)Testing&Certification Company Limited,Beijing 100088,China)

机构地区：[1]国标(北京)检验认证有限公司,北京100088

出　　处：《化学世界》2020年第10期683-686,共4页Chemical World

摘　　要：电感耦合等离子体质谱(ICP-MS)是目前分析痕量元素准确率较高、应用较为广泛的测定方法。用微波消解的方法对孕烯醇酮样品进行了前处理,采用ICP-MS对样品中的Pd元素进行测定,结果表明,存在相对标准偏差(RSD)过大及存在不稳定的问题,因此,通过对溶解体系的选择,采用马弗炉灰化法解决了测定过程中孕烯醇酮样品RSD不稳定的问题。Inductively coupled plasma mass spectrometry(ICP-MS)is the most widely used instrument for the analysis of trace elements with high accuracy.ICP-MS was used to determine the content of palladium(Pd)in pregnenolone,which was pretreated by microwave digestion.Results showed that relative standard deviation(RSD)is relatively large and unstable.Through the selection of dissolution system and muffle furnace ashing method,the problem of RSD instability in the determination of pregnenolone was solved.

关 键 词：电感耦合等离子体质谱 孕烯醇酮 微波消解 钯 相对标准偏差 

分 类 号：O657.63[理学—分析化学]