环境六氟化硫气体标准样品的研制  

Preparation of Standard Gas of Sulfur Hexafluoride

作　　者：刘涛 樊强 王帅斌 王倩 田文 

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》2015年第7期627-630,653,共5页Chemical Reagents

基　　金：环保公益性行业科研专项(2011467068);国家环境保护标准制修订项目(2010603.2)

摘　　要：六氟化硫是环境温室气体减排的重要化合物之一,采用重量法制备六氟化硫标准气体,考察了标准气体的制备方法、均匀性和稳定性。实验结果表明,制备的六氟化硫标准气体具有良好的重现性,气体瓶内均匀性良好,在12个月研制期间没有不稳定趋势,经与国内外同类标准气体比对,量值具有较好的一致性,能够满足环境温室气体监测工作的需要。Sulfur hexafluoride is one of important compounds on reducing environmental greenhouse gases（ GHGs）. The method for preparing standard gas of sulfur hexafluoride in nitrogen at high pressure cylinder has been studied. The reproduction of the gravimetric method,the homogeneity,and long-term stability of the standard gas is analyzed. The result shows that the standard gas is homogeneous and there are no systematic change in concentration of sulfur hexafluoride was detected during 12 months monitoring period. The certified value of standard gas agrees with the similar standard gas from NIST and NIM,which can absolutely fulfill requirements of organic pollutants monitoring.

关 键 词：环境 六氟化硫 气体标准样品 温室气体 监测 

分 类 号：O612.6[理学—无机化学] X831[理学—化学]