气相色谱内标法测胶粘剂中苯、甲苯、二甲苯的含量

Determination of Benzene, Toluene, Xylene in Adhesive for Gas Chromatography Internal Standard Method

本文建立了胶粘剂中苯、甲苯、乙苯、二甲苯异构体多种有毒有害成分同时检测技术。采用HP-INNOWAX石英毛细管柱分离,FID检测器,正戊烷作为内标,考察了主要苯系物的线性,校正因子和回收率情况。结果：线性回归情况良好;苯、甲苯、乙苯、间（对）二甲苯、邻二甲苯的回收率在98.86%~100.93%之间。

This paper established detection technology of benzene, toluene, ethylbenzene , xylene isomers of several kinds of toxic and harmful ingredients in adhesives. The HP-INNOWAX separation, capillary column and FID detector, pentane as internal standard, the linear effects of benzene, correction factor and rate of recovery. Results： the linear regression in good condition; benzene, toluene, ethylbenzene, xylene （on） between recovery, o-xylene rate was 98.86%-0.93%.