摘要
建立了快速、同时测定室内装饰装修材料胶黏剂中苯、甲苯、二甲苯含量的气相色谱检测法。样品用乙酸乙酯溶解处理后,用改性的聚乙二醇(FFAP)毛细管色谱柱分离,氢火焰离子化检测器检测,外标法定量。胶粘剂中苯、甲苯、二甲苯的浓度分别在8.58～171.40μg/mL、9.04～180.62μg/mL、8.80～175.92μg/mL范围内与峰面积呈良好的线性关系,线性相关系数均为0.999。苯、甲苯、二甲苯检出限均为0.20μg/mL,加标回收率分别为97.14%～100.16%、98.51%～101.44%、97.87%～100.80%,测定结果的相对标准偏差为1.36%～2.44%(n=6)。该方法简便、灵敏、准确,适于室内装饰装修材料胶黏剂中苯、甲苯、二甲苯残留量的快速同时测定。
A gas chromatograpic method for measuring benzene, toluene, dimethylbenzene quickly and simultaneously in the adhesives of decoration materials was established. Ethyl acetate was used for dissolving the sample, polyethylene glycol chromatographic column, hydrogen flames detector were employed to separate and detect the compounds and external standard method was used for quantitation. The contents of benzene, toluene, dimethylbenzene were linear with peak areas in the range of 8.58 - 171.40 μg/mL, 9.04 - 180.62 μg/mL,8.80 - 175.92 μg/mL respectively, with linear correlation coefficient of 0. 999. The detection limits of benzene, toluene, dimethylbenzene were 0.20 μg/mL, the rate of recoveries were 97.14% - 100.16%, 98.51% - 101.44% ,97.87% - 100.80% respectively, RSDs were 1.36% -2.44% （n = 6）. The method is quick, sensitive, accurate and suitable for determination of the benzene, toluene, dimethylbenzene in the adhesives of decoration materials.
出处
《化学分析计量》
CAS
2011年第1期59-61,共3页
Chemical Analysis And Meterage
关键词
气相色谱法
胶黏剂
苯
甲苯
二甲苯
gas chromatography, adhesive, benzene, toluene, dimethylbenzene
