冷聚焦-GC-MS法测定22种氯代烃气体标准样品  

Measurement of Standard Gas Mixture of 22 Chlorinated Hydrocarbons by Method of Cryofocus-GC-MS

作　　者：杜健 李宁 王帅斌 钱萌 王倩 

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：《化学试剂》2017年第1期60-62,99,共4页Chemical Reagents

基　　金：国家重大科仪专项项目(2012YQ06002703)

摘　　要：采用冷聚焦-GC-MS联用测定浓度水平为1μmol/mol的22种氯代烃混合气体标准样品,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最佳的重复性。采用优化后的分析条件对两瓶同一浓度水平的样品进行量值比对,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 22 chlorinated hydrocarbons by the level of 1 μmol/mol was determined by cryofocus-GC-MS.Under the premise of ensuring good separation effect,the relevant analysis conditions were optimized to achieve the best repeatability of sample analysis and determination.The results show that the method is accurate and reliable by using the optimized analytical condition to compares two samples in the same concentration level.Therefore,the method can provide technical support for the research of relevant standard gas.

关 键 词：冷聚焦-GC-MS 氯代烃 标准样品 优化 

分 类 号：O659[理学—分析化学]