An automatic carbon-14 gas analyzer for organic compounds and biological samples

✍ Scribed by S. Mlinko; E. Dobis; K. Payer; J. Ottinger; D. Bánfi; T. Palágyi; A. Turi

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 670 KB
• Volume: 83
• Category: Article
• ISSN: 0003-2697
• DOI: 10.1016/0003-2697(77)90503-6

✦ Synopsis

The present paper concerns automatic measurement of the radioactivity of substances labeled with carbon-14 isotope. The organic compounds or biological samples are combusted in an oxygen chamber. The oxygen excess is converted by hydrogen into water vapor in a reactor filled with copper and copper oxide. The water is retained by condensation and the carbon dioxide is swept by means of a counting gas, preferably propane or butane or a mixture of such gases, into an anticoincidence counter. The carbon-14 gas analyzer allows the measurement of carbon-14 isotope with high accuracy and sensitivity in a fully automated way, entirely free of manual intervention.