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气相色谱-串联质谱法测定涂料中10种苯并三唑类紫外线吸收剂
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作者单位
王晶,肖前,张子豪,刘莹峰,李全忠,郑建国,李攻科 1.广东检验检疫技术中心2.中山大学化学与化学工程学院 
基金项目:国家重点研发计划(2016YFF0203705);广东检验检疫局科技计划项目(2017GDK15)
中文摘要:建立了涂料中10种苯并三唑类紫外线吸收剂的气相色谱-串联质谱(GC-MS/MS)检测方法。水性涂料和溶剂型涂料样品风干成膜后分别以正己烷、乙腈超声提取,DB-5色谱柱(30 m×0.32 mm×0.25 μm)分离,MRM模式进行分析检测。结果表明,10种苯并三唑类紫外线吸收剂在0.1~10 μg/mL范围内与峰面积呈线性关系,方法的检出限(S/N=3)为0.6 mg/kg,定量下限(S/N=10)为2.0 mg/kg,在2、20、200 mg/kg加标浓度下的回收率为71.6%~112%,相对标准偏差(RSD,n=6)不大于5.5%。该方法快速简便、准确可靠,适用于涂料中苯并三唑类紫外线吸收剂的日常分析检测。
中文关键词:紫外线吸收剂  苯并三唑  气相色谱-串联质谱  检测
 
Determination of 10 Kinds of Benzotriazole Ultraviolet Absorbents in Coatings by Gas Chromatography-Tandem Mass Spectrometry
Abstract:A gas chromatography-tandem mass spectrometric(GC-MS/MS) method was developed for the determination of 10 kinds of benzotriazole ultraviolet absorbents in coatings.Samples were air-dried into a film,then extracted with hexane or acetonitrile through ultrasonic method.The target ingredients were separated on a DB-5 column(30 m×0.32 mm×0.25 μm) and analyzed under MRM mode.The linear ranges for 10 kinds of benzotriazole ultraviolet absorbents were between 0.1 μg/mL and 10 μg/mL.The limits of detection of this method were 0.6 mg/kg,and the limits of quantitation were 2.0 mg/kg.The recoveries ranged from 71.6% to 112% with relative standard deviations(RSDs,n=6) not more than 5.5%.This method was rapid,convenient,accurate and reliable,and it was appropriate for the routine determination of benzotriazole ultraviolet absorbents in coatings.
Key Words:ultraviolet absorbents  benzotriazole  gas chromatography-tandem mass spectrometry(GC-MS/MS)  determination
引用本文:王晶,肖前,张子豪,刘莹峰,李全忠,郑建国,李攻科.气相色谱-串联质谱法测定涂料中10种苯并三唑类紫外线吸收剂[J].分析测试学报,2019,(2):148-153.
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