高效液相色谱法测定涂料中乙酸苯基汞防霉剂  

Determination of phenyl mercury acetate preservative in coating by high performance liquid chromatography

作　　者：牛增元[1] 包艳[1] 汤志旭[1] 叶曦文[1] 罗忻[1] 

机构地区：[1]山东出入境检验检疫局,青岛266002

出　　处：《分析试验室》2007年第12期80-82,共3页Chinese Journal of Analysis Laboratory

基　　金：国家认证认可监督委员会标准制订项目(2005B040.4)资助

摘　　要：建立了高效液相色谱法对涂料中乙酸苯基汞进行检测的方法。样品经稀释后,以V（乙腈）∶V（2 mmoL NH4Ac）=90∶10为流动相,C18柱高效液相色谱分离,DAD为检测器,检测波长为195 nm。结果表明,线性范围为0.1~10 mg/L（相关系数r2=0.9995）,检出限为0.097 mg/L（相当于涂料中质量分数为2.43×10-3%）,对涂料样品进行5个不同浓度水平的添加回收,回收率为97.3%~103.1%,RSD≤4.5%（n=7）。本法具有较高的选择性、灵敏度和准确度,能满足涂料中乙酸苯基汞的测定分析。A method for the determination of phenyl mercury acetate （PMA） in coating by high performance liquid chromatography （HPLC） was proposed. After the samples were diluted, Chromatographic separation was performed on a C18 column with acetonitrile ＋ 2 mmol NH4Ac = 90 ＋ 10 as the mobile phase and the detection was done at 195 nm with a detector of DAD. The linear calibration curves are obtained in the concentration range of 0.1 - 10 mg/L （linear correlation coefficients r2 = 0.9995）, the detection limit is 0. 097 mg/L （equal to added percentage of coating 2.43 × 10^-3% ）. Recoveries of 5 different densities of PMA from coating range from 97.3% to 103.1%, with relative standard deviation of less than 4.5 % （ n = 7）. The method established is selective, sensitive, exact and completely sati- sfies high sensitive analysis for PMA in coating.

关 键 词：涂料 HPLC 醋酸苯基汞 

分 类 号：O557.7[理学—热学与物质分子运动论]