气相色谱-质谱法检测涂料中4种苯并三唑类紫外线吸收剂  

Determination of 4 kinds of highly concerned benzotriazole ultraviolet absorbers in coatings by GC-MS

作　　者：王晶[1] 余建龙 彭莹[1] 张子豪[1] 刘莹峰[1] 李全忠[1] 郑建国[1] 李攻科[2] 

机构地区：[1]广东出入境检验检疫局,广州510623 [2]中山大学化学与化学工程,广州510275

出　　处：《分析试验室》2017年第4期428-431,共4页Chinese Journal of Analysis Laboratory

基　　金：国家重点研发计划项目(2016YFF0203705);广东检验检疫局科技计划项目(2017CDK15)资助

摘　　要：采用气相色谱-质谱技术对涂料中4种高关注苯并三唑类紫外线吸收剂的含量进行测定。样品风干成膜后以正己烷或乙腈为溶剂进行超声提取,DB-5MS色谱柱(30 m×0.25 mm×0.25μm)分离,SCAN模式进行分析检测。4种苯并三唑类紫外线吸收剂质量浓度在0.5~50μg/m L范围内与峰面积呈线性关系。方法定量下限(S/N=10)为10 mg/kg。加标回收率为84.3%~100.4%,相对标准偏差(RSD,n=6)不大于8.9%。方法适用于涂料中高关注苯并三唑类紫外线吸收剂的日常分析检测。A gas chromatography-mass spectrometric（ GC-MS） method was developed for the determination of 4 kinds of highly concerned benzotriazole ultraviolet absorbers in coatings. Samples were dried into a film and then extracted with hexane or acetonitrile through ultrasonic method. The target ingredients were separated on a DB-5MS column（ 30 m × 0. 25 mm × 0. 25 μm） and analyzed with MS under scan mode（ SCAN）. The linear ranges of 4 kinds of benzotriazole ultraviolet absorbers were between 0. 5 and 50 μg/m L. The limits of quantitation were 10 mg/kg. The recoveries ranged from 84. 3% to 100. 4%,with relative standard deviations（ RSDs,n = 6） less than 8. 9%. This method was fast,sensitive,accurate,precise,and convenient to operate,and it was appropriate for the determination of benzotriazole ultraviolet absorbers in coatings in routine tests.

关 键 词：苯并三唑 紫外线吸收剂 气相色谱-质谱 测定 

分 类 号：TQ075[化学工程]