摘要
目的:建立工作场所空气中戊腈的检测方法。方法:采用活性炭管采集戊腈,丙酮解析,使用毛细管柱DB-WAX对样品进行分离,氢火焰离子化检测器检测,以保留时间定性,峰面积定量。结果:毛细管柱DB-WAX为本法最佳色谱分离柱,并进行方法学的验证,获得比较满意的结果。该方法 15.6 mg/L～1000 mg/L浓度范围内呈线性关系,相关系数为0.9999,检出限为0.2 mg/L,检出浓度为0.07 mg/m3,相对标准偏差0.8%～1.0%,回收率为86%～97%。结论:本实验建立的方法具有分离效果好、灵敏度高的优点,适用于工作场所空气中戊腈的准确定性和定量检测。
Objective：To establish gas chromatographic method for determination of pentanenitrile in workplace air. Methods ： Pentanenitrile in the air was adsorbed by activated carbon, desorbed by acetone, and determined by gas chromatography with DB - WAX Capillary column and flame ionization detector. The qualitative analysis was carried out with retention time and quantitation was analyzed by peak area. Results：The DB - WAX was the best col- umn for separation and the chromatographic method can obtain satisfactory results; the standard curves were linear（ r =0. 9999） over the range of 15.6 mg/L - 1000 mg/L; The detection limit was 0.2 mg/L; The detection limit of air was 0.07 mg/m3 ; The recovery was 86% ～ 97%. Conclusion： The method was sensitive and accurate,which was suitable for determination of pentanenitrile in workplace air.
出处
《中国卫生检验杂志》
北大核心
2013年第2期294-296,共3页
Chinese Journal of Health Laboratory Technology
基金
浙江省卫生厅公共卫生检验检测重点学科群(XKQ-009-003)
职业危害检测关键技术研究和应用实验室(2011F10049)
关键词
戊腈
毛细管柱
气相色谱
Pentanenitrile
Capillary column
Gas chromatography
