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001-es BibID:BIBFORM016462
Első szerző:Fábián István (vegyész)
Cím:Light-induced multistep redox reactions : The diode-array spectrophotometer as a photoreactor / István Fábián, Gábor Lente
Dátum:2010
ISSN:0033-4545
Megjegyzések:The light source of a photometer may induce chemical reactions in photosensitive reactive systems. Diode-array spectrophotometers are particularly suitable for producing such phenomena. This paper provides an overview on how this equipment can be used as a photoreactor. The principles of various techniques to control the intensity and spectral region of the illuminating light are discussed in detail. It will be shown that the quantum yields of various photochemically induced redox reactions can be determined by exploiting specific features of diode-array spectrophotometers. Kinetic coupling between primary photochemical and secondary thermally activated reaction steps are utilized to explore intimate details of composite redox reactions. Key aspects of the method applied are demonstrated via the photoreactions of 2,6-dichloro-1,4-benzoquinone (DCQ), the photoinduced autoxidation of S(IV) and a photochemically activated redox reaction of the chlorate ion.
Tárgyszavak:Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
autoxidation
chlorate ion
diode-array spectrophotometer
photoinitiation
quantum yield
spectrophotometry
sulfur(IV)
soluble iron(iii) porphyrin
aqueous autoxidation
sulfur(iv) oxides
hydrogen-peroxide
oxidation
kinetics
oxygen
water
ion
photochemistry
Megjelenés:Pure and Applied Chemistry. - 82 : 10 (2010), p. 1957-1973. -
További szerzők:Lente Gábor (1973-) (vegyész)
Internet cím:DOI
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