Investigation of adsorption and desorption behavior of small-volume cylinders and its relevance for atmospheric trace gas analysis
作者: Ece SatarPeter NyfelerBernhard BereiterCéline PascaleBernhard NiederhauserMarkus Leuenberger
作者单位: 1Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland
2Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
3Laboratory for Air Pollution/Environmental Technology, Empa, Dübendorf, Switzerland
4Federal Institute of Metrology METAS, Bern, Switzerland
刊名: Atmospheric Measurement Techniques, 2020, Vol.13 (1), pp.101-117
来源数据库: Copernicus Journal
DOI: 10.5194/amt-13-101-2020
原始语种摘要: Atmospheric trace gas measurements of greenhouse gases are critical in their precision and accuracy. In the past 5 years, atmospheric measurement and gas metrology communities have turned their attention to possible surface effects due to pressure and temperature variations during a standard cylinder's lifetime. This study concentrates on this issue by introducing newly built small-volume aluminum and steel cylinders which enable the investigation of trace gases and their affinity for adsorption and desorption on various surfaces over a set of temperature and pressure ranges. The presented experiments are designed to test the filling pressure dependencies up to 30 bar and temperature dependencies from −10   ∘ C up to 180  ∘ C for these prototype cylinders. We...
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关键词翻译
关键词翻译
  • cylinders 汽缸
  • atmospheric 大气的
  • temperature 温度
  • absolute 绝对的
  • varying 变化的
  • metrology 度量衡学
  • enabling 启动
  • relevance 关联性
  • prototype 原型
  • aluminum