The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1976
Filed:
Feb. 05, 1973
Sandor Mlinko, Budapest, HU;
Dezso Banfi, Budapest, HU;
Istvan Gacs, Budapest, HU;
Karoly Payer, Budapest, HU;
Laszlo Otvos, Budapest, HU;
Zoltan Vargay, Budapest, HU;
Emilia Dobis nee Farkas, Budapest, HU;
Tivadar Palagyi, Budapest, HU;
Chinoin Gyogyszer es Vegyeszeti Termekek Gyara RT., Budapest, HU;
Abstract
A process for measuring the isotope content of substances containing .sup.3 H or .sup.3 H and .sup.14 C isotopes in the gas phase, by converting the hydrogen content of the sample into water and the carbon content of the sample to a gaseous substance in simultaneous oxidation processes, separating the formed water and carbon dioxide, reconverting the .sup.3 H content of the water into gaseous form, introducing the gases containing .sup.3 H and possibly also .sup.14 C separately into a detecting unit, and determining the radioactivity of said gases, in which the tritium content of the water carrying the .sup.3 H radio-activity is bonded on a contact catalyst capable of water retention or adsorption and containing activated hydrogen, the gaseous mixture, containing also .sup.14 CO.sub.2 when a sample of .sup.14 C content is analyzed, is removed and, optionally after purification, is fed into a detecting unit together with a counting gas, then the tritium adsorbed on the surface of the catalyst is continuously converted into gas phase by exchange reaction with an appropriate gas flow and is fed into a detecting unit in unchanged state, or in the form of a compound prepared from it by chemical reaction.