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固相微萃取/气相色谱-质谱联用法测定沥青基防水涂料中18种多环芳烃的迁移量
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作者单位
潘永红,叶元坚,蔡锦安,袁嘉伟,梁森涛,陈志 广州质量监督检测研究院 
基金项目:广州市质量技术监督局科技项目(2016kj01)
中文摘要:建立了固相微萃取/气相色谱-质谱(SPME/GC-MS)测定沥青基防水涂料中18种多环芳烃(PAHs)迁移量的方法。研究了萃取涂层、萃取时间、搅拌速度及萃取温度对萃取效果的影响。在优化条件下,18种PAHs在1~100 μg/L范围内呈良好的线性关系,相关系数(r)为0992 8~0998 9,检出限为003~009 μg/L;在1、10、100 μg/L加标水平下的平均回收率为71%~94%,相对标准偏差(RSD,n=6)为28%~86%。对5份沥青基防水涂料进行迁移实验,发现迁移液中均检出PAHs,且主要为四环以下的PAHs。实验表明该方法适应于沥青基防水涂料中18种PAHs的迁移量检测。
中文关键词:固相微萃取(SPME)  气相色谱-质谱法(GC-MS)  多环芳烃  沥青基防水涂料  迁移
 
Determination of 18 Polycyclic Aromatic Hydrocarbons Migrated from Asphalt Based Waterproof Coating by Solid Phase Microextraction/Gas Chromatography-Mass Spectrometry
Abstract:A gas chromatography-mass spectrometry(GC-MS) with solid phase microextraction(SPME) was developed for the determination of 18 polycyclic aromatic hydrocarbons(PAHs) migrated from asphalt based waterproof coating.Influences of fibers species,extraction time,mixing speed and temperature on extraction efficiency were investigated.Under the optimized experimental conditions,good linearities were obtained for 18 PAHs in the range of 1-100 μg/L with their correlation coefficients(r) of 0992 8-0998 9 and the detection limits of 003-009 μg/L.The average recoveries at three spiked levels of 1,10,100 μg/L were in the range of 71%-94% with the relative standard deviations(RSD,n=6) of 28%-86%.The proposed method was applied in the migration analysis on five asphalt based waterproof coatings.Results showed that the PAHs in migratory fluid were detected,in which most were those with 4 rings below.The method is suitable for the determination of 18 PAHs migrated from asphalt based waterproof coating.
Key Words:solid phase microextraction(SPME)  gas chromatography-mass spectrometry(GC-MS)  polycyclic aromatic hydrocarbons(PAHs)  asphalt based waterproof coating  migration
引用本文:潘永红,叶元坚,蔡锦安,袁嘉伟,梁森涛,陈志.固相微萃取/气相色谱-质谱联用法测定沥青基防水涂料中18种多环芳烃的迁移量[J].分析测试学报,2018,37(7):772-777.
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