吹扫捕集-气相色谱质谱联用法测定水性涂料中苯系物  

Determination of Benzene Series in Waterborne Coating by Purge and Trap with Gas Chromatography-Mass Spectrometry

作　　者：汪欣 WANG Xin(Suzhou Construction Engineering Quality Testing Center Co.,Ltd,Suzhou Jiangsu 215123,China)

机构地区：[1]苏州市建设工程质量检测中心有限公司,江苏苏州215123

出　　处：《江西化工》2025年第2期46-50,共5页Jiangxi Chemical Industry

摘　　要：采用吹扫捕集-气相色谱质谱联用仪测定水性涂料中的苯、甲苯、乙苯、对/间二甲苯、邻二甲苯、苯乙烯、异丙苯共8种苯系物。此方法操作简便,具有良好的分离度、准确度及重复性。方法加标回收率为80.7%~118%,相对偏差为2.0%~5.9%,最低检出限为0.3μg/kg~0.8μg/kg。此方法可大幅度降低水性涂料中苯系物的检出限,且不会额外引入溶剂干扰,能够满足水性涂料中苯系物的测定需求。Author uses purge and Trap with Gas Chromatography-Mass Spectrometer to analyze eight benzene derivatives,including benzene,toluene,ethylbenzene,p-xylene,m-xylene,o-xylene,styrene,and isopropylbenzene in waterborne coatings.The experimental results show that this method is easy to operate,has good separation efficiency,accuracy,and repeatability for 8 benzene derivatives.The recovery rate of the spiked method is between 80.7%and 118%.The relative deviation is between 2.0%and 5.9%.The lowest detection limit is between 0.3μg/kg and 0.8μg/kg.This method can significantly reduce the detection limit of benzene derivatives in waterborne coatings and does not introduce additional solvent interference.This method can satisfy the determination demand of benzene derivatives in waterborne coatings.

关 键 词：水性涂料 苯系物 吹扫捕集 

分 类 号：O657.63[理学—分析化学] TQ637[理学—化学]