Chemistry: physical processes – Physical processes – Crystallization
Patent
1973-02-05
1976-03-23
Wolk, Morris O.
Chemistry: physical processes
Physical processes
Crystallization
23232R, 23253PC, 23254R, G01N 2300, G01N 3112
Patent
active
039457974
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.
REFERENCES:
patent: 3226197 (1965-12-01), Lewis
patent: 3304159 (1967-02-01), Hinsvark
patent: 3506402 (1970-04-01), Simon
patent: 3622276 (1971-11-01), Haahti et al.
patent: 3679366 (1972-07-01), Benson et al.
patent: 3682598 (1972-08-01), Kaartinen
patent: 3726646 (1973-04-01), Kravetz et al.
patent: 3832137 (1974-08-01), Mlinko et al.
Banfi Dezso
Dobis nee Farkas Emilia
Gacs Istvan
Mlinko Sandor
Otvos Laszlo
Chinoin Gyogyszer - es Vegyeszeti Termekek Gyara Rt.
Hagan Timothy W.
Wolk Morris O.
LandOfFree
Process and apparatus for measuring the isotope content of subst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for measuring the isotope content of subst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for measuring the isotope content of subst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1641353