摘要
目的建立空气中N,N-二甲基甲酰胺(DMF)的毛细管气相色谱分析方法。方法采用活性炭管采集空气中的N,N-二甲基甲酰胺,甲醇解吸,毛细管色谱柱分离,氢焰离子化检测器(FID)检测。保留时间定性,内标法定量。结果DMF浓度在0.01～8.0μg/μl范围内线性关系良好(r>0.999),检出限为4.0×10-4μg,相对标准偏差为0.9%～7.5%,解吸效率为86.5%～94.0%。结论该方法可用于空气中DMF的测定。
Objective To develop the capillary gas chromatographic analytical method for determination of N,N- dimethylformamide （DMF） in the air. Methods DMF in the air was collected by activated carbon tube, desorbed by methanol, separated by capillary column and analyzed by gas chromatography-flame ionization deteetor（GC-FID）. Retention time was used for qualitative analysis and internal standard method for quantitative analysis. Results The linear range of DMF concentration was 0.01-8.0 μg/μl （r〉0.999）. The limit of detection was 4.0×10^-4 μg. The relative standard deviation was 0.9%-7.5% and the desorption efficiency of DMF was 86.5%-94.0%. Conclusion The method is applicable to the determination of DMF in the air.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2009年第9期817-818,共2页
Journal of Environment and Health
基金
环保公益性行业科研专项(200809103)
关键词
色谱法
气相
N
N-二甲基甲酰胺
活性炭管
Chromatography,gas
N, N-dimethylformamide
Activated carbon tube
