TEMPERATURE-DEPENDENT CHARACTERISTICS OF TEFLON MEMBRANES USED IN MASS SPECTROMETRY

Authors
  1. Holness, D.E.
  2. Brock, A.J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
In vitro information is provided on the gas partial pressure/temperature relationship and on the membrane permeability/temperature relationship, when a special type of Teflon membrane is used with a mass spectrometer. Monitored pressures of oxygen, nitrogen, and carbon dioxide in an equilibrating gas mixture decreased with stepwise decreases in temperature from 37 to 18C. Permeability of membranes to all gases also decreased with decreasing temperature. Observed partial pressure changes were apparently due to temperature-induced changes in Teflon membrane permeability characteristics.
Report Number
73-RP-973 —
Date of publication
01 Jan 1975
Number of Pages
3
Reprinted from
Medical Instrumentation, vol 9, no 1, 1975, p 23-25
DSTKIM No
76-00804
CANDIS No
117690
Format(s):
Hardcopy

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