Carbon Isotope Selective Separation From MPD of CF3Br With a TEA CO2 Laser | Zendy

J. I. del Barrio | Zendy; Raquel Fernández Cézar | Zendy; F. M. G. Tablas | Zendy

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Carbon Isotope Selective Separation From MPD of CF₃Br With a TEA CO₂ Laser

Author(s) -

J. I. del Barrio,

Raquel Fernández Cézar,

F. M. G. Tablas

Publication year - 1998

Publication title -

laser chemistry

Language(s) - English

Resource type - Journals

eISSN - 1026-8014

pISSN - 0278-6273

DOI - 10.1155/1998/29272

Subject(s) - chemistry , homonuclear molecule , selectivity , polyatomic ion , fluence , monatomic gas , analytical chemistry (journal) , isotope separation , carbon fibers , carbon monoxide , diatomic molecule , wavelength , laser , carbon 13 , isotope , ion , molecule , organic chemistry , optics , physics , materials science , quantum mechanics , composite number , composite material , catalysis

Pure CF 3 Br and mixtures of this substance with monoatomic (He, Ar and Xe),homonuclear diatomic (H 2 , D 2 , N 2 ), polyatomic gases (CF 4 ) and NO have beenirradiated with a TEA CO 2 laser. Carbon-13 enrichment factor and carbon-13 selectivityhave been estimated from the mass spectrometric analysis of the undissociated CF 3 Br asa function of excitation wavelength, fluence, temperature and pressure. The irradiatingwavelength is a crucial parameter to achieve enrichment. The nature of the added gasalso affects considerably selectivity. Best enrichment is achieved in mixtures with NO dueto its radical-like character.

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