摘要
目的：建立汽车喷漆工作场所空气中丙酮、乙酸乙酯、苯、甲苯、二甲苯气相色谱同时测定方法。方法：采用活性炭管吸附工作场所空气中丙酮、乙酸乙酯、苯、甲苯、二甲苯,经二硫化碳解吸后进样,2 m×4 mm的10%FFAP玻璃柱程序升温（初始温度55℃,保持2.5 min,以40℃/min升至100℃,保持6 min）分离,由FID检测。结果：丙酮、乙酸乙酯、苯、甲苯、对、间-二甲苯、邻-二甲苯的保留时间分别为3.21、3.93、4.65、6.39、8.59、9.92 min;线性范围分别为10～1264μg/ml、0.4～2519μg/ml、0.9～35.1μg/ml、1.8～104μg/ml、4.9～521μg/ml（二甲苯）;检出限分别为10、1.8、0.9、1.8、4.9μg/ml（二甲苯）;相关系数分别为0.9992、0.9993、0.9992、0.9994、0.9995、0.9993。结论：该方法适合汽车喷漆工作场所空气中丙酮、乙酸乙酯、苯、甲苯、二甲苯的同时测定。
Objective：To establish a method for the simultaneous determination of acetone,ethyl acetate,benzene,toluene and xylene in the air of vehicle painting workplace by gas chromatography.Methods：Acetone,ethyl acetate,benzene,toluene and xylene in the air of workplace were collected with charcoal tube,then were injected after were desorbed with carbon disulfide,through 10% FFAP glass column（2 m×4 mm）,primary temperature was 55℃ remain 2.5 minutes,elevate temperature to 100℃ at 40℃ per minute,remain 6 minutes.Results：Retention time of acetone,ethyl acetate,benzene,toluene,p,inter-Xylene and o-Xylene were 3.21,3.93,4.65,6.39,8.59 and 9.92 min.The linearity ranges were 10～1264 μg/ml,0.4～2519 μg/ml,0.9～35.1 μg/ml,1.8～104 μg/ml and 4.9～521 μg/ml（Xylene）.The limits of detection were 10,1.8,0.9,1.8 and 4.9 μg/ml（Xylene）.The coefficient of correlation were 0.9992,0.9993,0.9992,0.9994,0.9995 and 0.9993.Conclusion：The method is suitable to determine acetone,ethyl acetate,benzene,toluene and xylene in the air of vehicle painting workplace simultaneously.
出处
《中国卫生检验杂志》
CAS
2009年第12期2797-2798,2830,共3页
Chinese Journal of Health Laboratory Technology
关键词
气相色谱
汽车喷漆
丙酮
乙酸乙酯
苯
甲苯
二甲苯
溶剂解吸
Gas chromatograph
Vehicle painting
Acetone
Ethyl acetate
Benzene
Toluene
Xylene
Dissolvent desorption
