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CERC.OCEAN

Halocarbon gases

Agilent 7890B Gas Chromatograph - Mass Spectrometer 5977A

Halocarbon gases concentrations

Methodology

Volatile halocarbons, such as methyl iodide (CH3I), are purged and trapped on an IMT VSP4000 system, then the isolated compounds are carried to a gas chromatograph (GC) equipped with a micro electron capture detector (ECD) and a mass spectrometer. This instrument measures聽methyl idodie (CH3I), chloriodomethan (CH2ClI), diiodomethan (CH2I2), dibrommethan (CH2Br2) and bromoform (CHBr3).

Associated Projects

Publications

  • Shi, Q., & Wallace, D. (2018). A 3-year time series of volatile organic iodocarbons in Bedford Basin, Nova Scotia: A northwestern Atlantic fjord. Ocean Science, 14(6), 1385鈥�1403. doi: 10.5194/os-14-1385-2018
  • Ibrahim Sadiek,听Qiang Shi,听Douglas Wallace, Gernot Friedrichs. "Quantitative Mid-Infrared Cavity Ringdown Detection of Methyl Iodide for Monitoring Applications."聽Analytical Chemistry听(2017).听