[abstract] FEASIBILITY OF BLOOD GASES ANALYSIS BY MASS SPECTROMETRY IN HYPERBARIC ENVIRONMENTS.

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[abstract] FEASIBILITY OF BLOOD GASES ANALYSIS BY MASS SPECTROMETRY IN HYPERBARIC ENVIRONMENTS.

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Title: [abstract] FEASIBILITY OF BLOOD GASES ANALYSIS BY MASS SPECTROMETRY IN HYPERBARIC ENVIRONMENTS.
Author: Giry, P; Battesti, A; Broussolle, B
Abstract: Actual inert and physiological gases measurement in blood is of great interest for gas exchange studies in hyperbaric situations. Up to now, the only useful mass spectrometry probes for continuous recording in hyperbaric situations were Teflon ones. It has been designed a Silastic probe, made of a Silastic depot on a porous support. The characteristics of the system are: a) Routine pressure resistance test: 40 bars for 1 H without rupture of the membrane. Some has been tested up to 120 bars and resisted. b) 0-63 percent response-time (seconds: m +/- SEM). He: 7.8 +/- 0.1. N2: 23.8 +/- 0.2. O2: 23.1 +/- 0.2. A : 25.4 +/- 0.1. CO2: 23.7 +/- 0.2. SF6: 156 +/- 5. c) Temperature coefficient: (in percent of full response x degrees C^-1). He: 1.19 +/- 0.03. N2: 1.04 +/- 0.06. O2: 0.92 +/- 0.08. A: 0.72 +/- 0.03. CO2: 0.49 +/- 0.09. SF6: 1.37 +/- 0.15. Under pressure steady state conditions, the relationship between the system response and the partial pressure of the gas is linear. With this system, it has been possible to measure wash in and wash out of inert gases in arterial blood at 20 ATAs. The response time of the analysis system can be considered as neglectable in regard of the measured periods in arterial blood.
URI: http://archive.rubicon-foundation.org/4603
Date: 1979

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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