摘要
目的:建立工作场所、环境空气、废气中的氯乙烯热解吸-气相色谱测定方法。方法:Carboxen1000吸附管吸附工作场所、环境空气中氯乙烯、二氯乙烷经热解吸-气相色谱进行定性及定量分析。结果:标准曲线相关系数达到0.9998,检出限30 ng/样品,最低检出浓度0.02 mg/m^3(以采集1.5 L空气计),解吸效率91.3%~94.5%,精密度0.6%~4.2%,吸附管净化好后和样品采集后用黄铜螺帽密封放入密封的塑料袋中常温可保存一周。结论:该方法可用于工作场所、环境空气、废气、室内空气中氯乙烯浓度的检测。
Objective： to establish a method for determination of workplace and ambient air, in the exhaust gas of vinyl chloride thermal desorption - gas chromatography. Methods ： CarboxenlO00 adsorption tube adsorption in ambient air of workplace, vinyl chloride, and two chloride by thermal desorption gas chromatography for qualitative and quantitative analysis. Results： the correlation coefficient of the standard curve reached 0. 998. The detection limit of 30 ng/samples, the lowest detectable concentration of 0. 2 mg/m. （to collect 1. L air）, desorption efficiency 91% to 94% and precision of 0. % -4. % , the adsorption tube well purified and samples were collected with brass nut sealed into the sealed plastic bag at room temperature can be kept up to a week. Conclusion： this method can be used to detect the concentration of vinyl chloride in workplace, ambient air, exhaust gas, indoor air concentration of vinyl chloride.
出处
《安全、健康和环境》
2016年第4期26-29,共4页
Safety Health & Environment
