摘要
目的建立工作场所空气中乙酸乙酯、丙烯酸甲酯2种有机物同时检测的气相色谱测定方法。方法用活性炭管采集工作场所空气中的乙酸乙酯、丙烯酸甲酯2种有机物，二硫化碳溶剂解吸后进样，经DB—FFAP毛细管气相色谱柱分离，氢焰离子化检测器检测，以保留时间定性，峰面积定量。结果乙酸乙酯、丙烯酸甲酯两种有机物的检出限分别为0．38和0．87μg／ml，线性范围在200—3000、50～500μg/ml范围内，相关系数均大于0．998，加标回收率为89％-98％。结论方法准确快速、灵敏度高，适用于工作场所空气中乙酸乙酯、丙烯酸甲酯的同时测定。
[ Objective] To develop a method for simultaneous determination of two organic compounds （ ethyl acetate and methyl ac-rylate） in the air of workplace by gas chromatography （GC）. [ Methods] Ethyl acetate and methyl acrylate in the air of workplace were collected by charcoal tube, sampling was performed after carbon disulfide desorption. The samples were separated by DB-FFAP capillary column, and detected by hydrogen flame ionization detector. The qualitative analysis was performed by retention time, and the quantification analysis was based on peak area. [ Results] The detection limit of ethyl acetate and methyl acrylate was 0. 38μg/ml and 0. 87 μg/ml respectively, while the linearity range was 200-3 000 μg/ml and 50-500 μg/ml respectively. Both correlation coefficients were greater than 0. 998, and the recovery of standard addition was between 89 % and 98 %. [ Conclusion] The method is accurate and rapid, with high sensitivity, and it is suitable for the simultaneous determination of ethyl acetate and methyl acrylate in the air of workplace.
出处
《职业与健康》
CAS
2014年第1期49-51,共3页
Occupation and Health
关键词
工作场所空气
有机物
毛细管气相色谱法
Air of workplace
Organic compounds
Capillary gas chromatography
