摘要
目的建立适用于同时测定常用溶剂型胶粘剂中苯、甲苯、二甲苯含量的气相色谱分析方法。方法用二甲基甲酰胺溶解胶粘剂样本,用聚乙二醇(wax)毛细管色谱柱,氢火焰检测器气相色谱法对苯系物进行分离,保留时间定性,峰面积定量。结果胶粘剂中苯、甲苯、二甲苯在7.33～146.50、7.23～144.50、7.21～144.20mg/L范围内,该方法具有良好的线性(均r=0.999),苯、甲苯、二甲苯的方法检出限分别为0.22、0.24、0.24mg/L。样品加标回收率分别为96.45%～100.09%,98.45%～100.76%,97.81%～100.14%。RSD为1.60%～2.85%。结论该方法适用于同时测定常用溶剂型胶粘剂中苯、甲苯、二甲苯的检测,方法准确、可靠。
Objective To establish a gas chromatography method which will be suitable for determination of one time of the benzene, toluene, dimethylbenzene in the adhesives. Methods DMF was used for dissolving the sample, polyethylene glycol chrom-atographic column, hydrogen flames detector gas chromatography were employed to separate the compounds, determine the nature of serve time, quantify apex area. Results The contents of benzene, toluene, dimethylbenzene in gooey were 7.33-146.50, 7.23-144.50 and 7.21-144.20 mg/L respectively, with a good linear relativity （r=0.999）, the rate of recovery were 96.45%- 100.09%, 98.45%-100.76%, 97.81%-100.14%, the detection limits of the three chemicals were 0.22, 0.24 and 0.24 mg/L respectively, RSD were 1.60%-2.85%. Conclusion The method is accurate, feasible and suitable for determination of the benzene, toluene, dimethylbenzene in the adhesives.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2006年第3期275-276,共2页
Journal of Environment and Health
关键词
色谱法
气相
胶粘剂
苯
甲苯
二甲苯
Chromatography, gas
Gooey
Benzene
Toluene
Xylene
