摘要
目的建立应急快速检测空气中邻氯苯乙烯气相色谱测定方法。方法用注射器采集工作场所空气中的邻氯苯乙烯，直接进样，经30m×0．53mm×0．25μmFFAP毛细管色谱柱分离，氢火焰离子化检测器检测。结果本方法在0—1200μg，L范围呈线性关系；样品在注射器中可保存5h；方法的重现性好，不同浓度的相对标准偏差为1．28％～1．97％；回归方程式为Y=14030＋7207X，r=0．9999。方法的最低检出浓度为5．2mg／m^3；空气中与邻氯苯乙烯共存的苯乙烯、对氯苯乙烯、间氯苯乙烯等在本方法条件下不干扰测定。结论该方法各项指标均达到GBZfr210．4—2008《职业卫生标准制定指南第四部分：工作场所空气中化学物质检测方法》的要求，适用于工作场所空气中邻氯苯乙烯的现场监测。
Objective To establish a rapid gas chromatographic method for determination of ochlorostyrene in the air of workplace. Method The air samples were collected by syringes, injected directly to the GC system, and then separated by a FFAP capillary column（30m×0.53mm×0.25μm）, finally determined by a Flame Ionization Detector. Results A good linear correlation was showed within a range of 0-1200 μg/L, with regression formula Y= 14 030＋7 207X （r=0.999 9）. The air sample could be stably stored in the syringe for 5 hrs. The relative standard deviation （RSD） of repeated injection of o-chlorostyrene standard solutions at three different concentration by six times was 1.28%-1.97%. The minimun detectable concentration was calculated to be 5.2 mg/m^3. Other coexistent volative organic compounds such as styrene, p-chlorostyrene, and m-chlorostyrene didn＇t interfere with the determination under the experimental conditions of this method. Conclusion This method meets the requirement of Guide for establishing occupational health standards- Part 4： Determination methods of air chemicals in workplace. It is applicable for determination of o- Chlorostyrene in the air of workplace.
出处
《中华劳动卫生职业病杂志》
CAS
CSCD
北大核心
2011年第2期152-153,共2页
Chinese Journal of Industrial Hygiene and Occupational Diseases
基金
广东省深圳市科技局科研项目（200903122）
