Assay of Breath Garbon-14 Dioxide of Humans Using Ionization Chambers.
- 1 March 1955
- journal article
- research article
- Published by Frontiers Media SA in Experimental Biology and Medicine
- Vol. 88 (3) , 383-386
- https://doi.org/10.3181/00379727-88-21595
Abstract
An apparatus for the physical separation and purification of CO2 from human breath is described. These CO2 samples were measured in a series of ionization chambers varying from 100 to 1500 cc. The optimum sample size was found to be 1000 cc for these unshielded-atmospheric pressure ionization chambers. With such equipment it is possible to carry out experiments in humans with as little as one microcurie of C-14.Keywords
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