PMID: 18186347Jan 12, 2008Paper

Calibration of an in situ membrane inlet mass spectrometer for measurements of dissolved gases and volatile organics in seawater

Environmental Science & Technology
R J BellR H Byrne

Abstract

Use of membrane inlet mass spectrometers (MIMS) for quantitative measurements of dissolved gases and volatile organics over a wide range of ocean depths requires characterization of the influence of hydrostatic pressure on the permeability of MIMS inlet systems. To simulate measurement conditions in the field, a laboratory apparatus was constructed for control of sample flow rate, temperature, pressure, and the concentrations of a variety of dissolved gases and volatile organic compounds. MIMS data generated with this apparatus demonstrated thatthe permeability of polydimethylsiloxane (PDMS) membranes is strongly dependent on hydrostatic pressure. For the range of pressures encountered between the surface and 2000 m ocean depths, the pressure dependent behavior of PDMS membranes could not be satisfactorily described using previously published theoretical models of membrane behavior. The observed influence of hydrostatic pressure on signal intensity could, nonetheless, be quantitatively modeled using a relatively simple semiempirical relationship between permeability and hydrostatic pressure. The semiempirical MIMS calibration developed in this study was applied to in situ underwater mass spectrometer (UMS) data to generate high...Continue Reading

References

Mar 15, 2000·Mass Spectrometry Reviews·R C JohnsonP H Hemberger
Jun 13, 2001·Journal of the American Society for Mass Spectrometry·R T ShortR H Byrne
Apr 1, 1963·Archives of Biochemistry and Biophysics·G HOCH, B KOK
Apr 6, 2006·Rapid Communications in Mass Spectrometry : RCM·Christian JanfeltFrants R Lauritsen

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Citations

Sep 16, 2008·Journal of the American Society for Mass Spectrometry·Michael Schlüter, Torben Gentz
Jul 11, 2012·Environmental Science & Technology·Lars MächlerRolf Kipfer
Dec 18, 2012·Environmental Science & Technology·Scott D WankelPeter R Girguis
Apr 9, 2014·Environmental Science & Technology·Robert H Byrne
Feb 16, 2013·Rapid Communications in Mass Spectrometry : RCM·Andres M Cardenas-ValenciaR Timothy Short
Dec 21, 2014·Journal of the American Society for Mass Spectrometry·Ryan J BellErik T Krogh
Dec 17, 2014·Journal of the American Society for Mass Spectrometry·Phillip M MachGuido F Verbeck
Jan 1, 2009·Annual Review of Marine Science·Tommy S MooreGeorge W Luther
May 7, 2019·International Journal of Analytical Chemistry·Fred P M JjunjuStephen Taylor
Aug 14, 2009·Environmental Science & Technology·Richard Camilli, Anthony N Duryea
Sep 12, 2014·Environmental Science & Technology·Rodrigo Gonzalez-ValenciaFrederic Thalasso
Jul 2, 2011·Analytical Chemistry·Boris BrkićStephen Taylor
Oct 26, 2018·Environmental Science & Technology·David P NicholsonSamuel A Monk

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