Rapid Method for the Radioisotopic Analysis of Gaseous End Products of Anaerobic Metabolism

Autor: David R. Nelson, J. G. Zeikus
Rok vydání: 1974
Předmět:
Zdroj: Applied Microbiology. 28:258-261
ISSN: 0003-6919
Popis: A gas chromatographic procedure for the simultaneous analysis of 14 C-labeled and unlabeled metabolic gases from microbial methanogenic systems is described. H 2 , CH 4 , and CO 2 were separated within 2.5 min on a Carbosieve B column and were detected by thermal conductivity. Detector effluents were channeled into a gas proportional counter for measurement of radioactivity. This method was more rapid, sensitive, and convenient than gas chromatography-liquid scintillation techniques. The gas chromatography-gas proportional counting procedure was used to characterize the microbial decomposition of organic matter in anaerobic lake sediments and to monitor 14 CH 4 formation from H 2 and 14 CO 2 by Methanosarcina barkeri .
Databáze: OpenAIRE