【摘要】 采用冷阱捕集,浓缩富集与气相色谱-质谱及火焰光度检测器联用,建立了工业企业厂区大气中10种硫化物的测定方法。在优化的监测模式下,方法回收率在80%以上,相对标准偏差在15%以下,检出限满足国家标准及北京市地方标准对工业企业厂界中硫化物的监管要求。方法使用苏玛罐采样,快速、便捷,质谱检测器定性准确、可靠,火焰光度检测器检测灵敏、精密,实际样品的测试证明本方法可以满足厂区大气中硫化物的定量分析要求。更多还原

【Abstract】 GC/MS&FPD coupled the pre-concentration was applied to the determination of 10 sulfides in plant atmosphere.Under the optimized monitoring mode,the recovery rate of the method is above 80%,and the relative standard deviation is below 15%.The detection limits meet the requirements of national and Beijing local standards for the supervision of sulfides in industrial enterprises.Sampling is rapid and convenient with Summa canisters.Accurate qualitative analysis is obtained by MS,while sensitive quantitation is got from FPD.Samples of ambient air around factories were detected using this method,meeting the requirements of accurate quantitative analysis for 10 sulfur compounds in ambient air around factories.更多还原