冷聚焦-GC-MS法测定臭氧前体物混合气体标准样品  

Measurement of standard gas mixture of ozone precursors by the method of cryofocus-GC-MS

作　　者：杜健[1] 钱萌[1] 李宁[1] 王帅斌[1] 王倩[1] 

机构地区：[1]环境保护部标准样品研究所,国家环境保护污染物计量和标准样品研究重点实验室(筹),北京100029

出　　处：《分析试验室》2017年第5期616-620,共5页Chinese Journal of Analysis Laboratory

摘　　要：采用冷聚焦-GC-MS联用测定1μmol/mol的57种臭氧前体物混合气体标准样品,在保证各组分能够实现良好分离效果的前提下,对相关分析条件进行了优化以实现样品分析测定的重复性最佳,该方法可准确测定其中的54种组分,在最优条件下6次重复测定的RSD在0~2.5%之间,结果表明该方法准确、可靠,可为相关气体标准样品的研制提供技术支持。Standard gas mixture of ozone precursors by the level of 1 μmol/mol was determined by cryofocus-GC-MS. Under the premise of ensuring good separation, the relevant analysis conditions were optimized to achieve the best repeatability of sample determination. The method could analyze 54 kinds of ozone precursors. Under the optimal conditions, the RSD was between 0 and 2.5%. The results show that the method is accurate and reliable . Therefore, the method can provide technical support for the research of relevant standard gas.

关 键 词：冷聚焦-GC-MS法 臭氧前体物 标准样品 优化 

分 类 号：O659[理学—分析化学]