Membrane Inlet Mass Spectrometry for measuring dissolved gases

Singleton, M ; Hudson, G

Lawrence Livermore National Laboratory

关键词: Vacuum Systems;    Quadrupoles;    Membranes;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Gases;   

DOI  :  10.2172/877829
RP-ID  :  UCRL-TR-214564
RP-ID  :  W-7405-ENG-48
RP-ID  :  877829

美国|英语

来源: UNT Digital Library

【 摘 要 】

A Membrane Inlet Mass Spectrometer (MIMS) is used to measure dissolved gas concentrations in environmental water samples. Gases are exsolved out of water by passing the sample through a silicone gas permeable membrane that is under vacuum. A quadrupole mass spectrometer attached to the vacuum system is capable of measuring a variety of gases over a wide range of concentration. The MIMS is a versatile and field portable instrument.