OXYGEN ISOTOPE ANALYSIS OF THE RESPIRATORY AIR IN ANIMAL RESEARCH WITH APPLICATION OF THE MASS SPECTROMETER (in German)
Journal Article
·
· Z. Naturforsch
OSTI ID:4190756
In animal studies it was necessary to detect in the exhaled air the O/ sub 2/ introduced in the blood stream in order to be able to recognize possible desiccation. Since radioactive oxygen isotopes with a half life long enough for the investigation do not exist, the stable oxygen isotope O/sup 18/ was used for the labeling. The relative frequency of the stable isotopes O/sup 16/ and O/sup 18/ in the O/sub 2/ and CO/sub 2/ of the exhaled air was analyzed with a Nier- type mass spectrometer. The spatial separation of the research and measurement stations led to a number of methodic difficulties whose solutions are described. The results show that, if no mass spectrometer is available, work with stable oxygen isotopes is possible if the sampling is done with regard for certain precautionary measures. (tr-auth)
- Research Organization:
- Deutsches Akademie der Wissenschaften, Leipzig; Karl-Marx- Universitat, Leipzig
- NSA Number:
- NSA-14-013711
- OSTI ID:
- 4190756
- Journal Information:
- Z. Naturforsch, Journal Name: Z. Naturforsch Vol. Vol: 15b
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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