原子荧光法测定二丁基二月桂酸锡中锡含量  

Determination of Stannum Content in Dibutyltin Dilaurate by Atomic Fluorescence Spectrometric Method

作　　者：王崇臣[1] 王鹏[1] 刘阳春 何颖[3] 汪长征[1] 

机构地区：[1]城市雨水系统与水环境省部共建教育部重点实验室,北京建筑工程学院,北京100044 [2]北京市水文总站,北京100089 [3]北京吉天仪器有限公司,北京100016

出　　处：《涂料工业》2011年第9期70-72,共3页Paint & Coatings Industry

基　　金：北京市属市管高等学校人才强教计划项目(PHR201008372和PHR201106124)

摘　　要：经氧化、分解及消化后,二丁基二月桂酸锡转化成无机锡,分别采用常规化学滴定法、电感耦合等离子质谱法(ICP-MS)及原子荧光光谱法(AFS)测定二丁基二月桂酸锡中的锡含量,结果表明这3种测试手段所测数值基本一致。较其他两种方法而言,原子荧光光谱法具有简便、快速、准确、灵敏度高等特点。针对原子荧光光谱法的加标回收实验结果为99.2%～100.8%,表明该法测定的结果准确可靠,适合作为测定二丁基二月桂酸锡中锡含量的常规检测方法。The organic stannic compound was converted into inorganic stannum by oxidation, decomposition and nitration of dibutyltin dilaurate （DBDTL）. Conventional titration analysis, inductively coupled plasma mass spectrometry （ ICP - MS） and atomic fluorescence spectrometric （AFS） were used to determine the stannum content in DBDL, respectively. The results revealed that all the three methods can get similar values of stannum content. Comparing with conventional titration analysis and ICP - MS, AFS was featured by its simple, fast, more accurate, and more sensitive. The results of standard recovery tests ranged from 99.2% -100. 8% , revealing the reliable results from AFS, which was suitable to be used as routine test methods to determine the stannum in DBDL.

关 键 词：原子荧光 电感耦合等离子质谱 滴定分析法 二丁基二月桂酸锡 锡含量 

分 类 号：TQ630.71[化学工程—精细化工]