离子选择性电极法测定三羟甲基氧化膦中的钠  

Ion Selective Electrode Method for Determination of Sodium in Tri( hydroxymethyl) phosphineoxide

作　　者：毛端平 何西平[2] 李琴 杜建侠 

机构地区：[1]湖北省兴发磷化工研究院有限公司,湖北宜昌443000 [2]湖北兴发化工集团股份有限公司,湖北宜昌443000

出　　处：《广州化工》2017年第5期86-87,133,共3页GuangZhou Chemical Industry

摘　　要：由于钠元素的活泼性导致了其测试的困难,一般采用大型仪器方法检测,其简单分析方法的开发一直处于停滞不前的状态。本文中阐述了一种采用离子选择性电极简单快速准确测试三羟甲基氧化膦中钠元素含量的方法,所用设备简单易得,样品无需处理直接测定,测定结果与火焰原子吸收分光光度法的检测结果具有高度的一致性,加标回收率在98.2%-102.0%之间,值得广泛推广。The lively property of sodium element leads to difficulties of its testing,the methods are commonly used relying on large-scale equipment. The development of its simple analysis method has been in a stagnant state.Tri（ hydroxymethyl） phosphineoxide was quantitatively analyzed with ion selective electrode. The contents of sodium in tri（ hydroxymethyl） phosphineoxide were determined by this simple,fast and accurate method. The used equipment was simple and easy to get. The sample was analyzed directly without any processing. The determination results showed high consistency with the results in the detection by flame atomic absorption spectrophotometry. The recoveries were 96% ~109%. The method is well worthy for widely promoting.

关 键 词：三羟甲基氧化膦 离子选择性电极 钠离子 

分 类 号：O65[理学—分析化学]