A dryer for rapid response on-line expired gas measurements
- 1 June 1979
- journal article
- research article
- Published by American Physiological Society in Journal of Applied Physiology
- Vol. 46 (6) , 1196-1199
- https://doi.org/10.1152/jappl.1979.46.6.1196
Abstract
A dryer is described for use in on-line breath-by-breath gas analysis systems. The dryer continuously removes water vapor by condensation and controls the sample gas at 2 degrees C dew-point temperature or 5 Torr water vapor partial pressure. It is designed to operate at gas sampling flow rates from 0.5 to 1 1.min-1. The step-response time for the described system including a Beckman LB-2 CO2 analyzer, sampling tubing, and dryer is 120 ms at 1 l.min-1. The time required for gas samples to transport through the dryer is 105 ms at a gas sampling-flow rate of 1 l.min=1.This publication has 0 references indexed in Scilit: