MEASUREMENT OF PHOTOGENERATED SINGLET OXYGEN (O-1(2) ((1)DELTA(G))) IN AQUEOUS-SOLUTION BY SPECIFIC CHEMICAL TRAPPING WITH SODIUM 1,3-CYCLOHEXADIENE-1,4-DIETHANOATE

Authors
NARDELLO V BRAULT D CHAVALLE P AUBRY JM
Citation
V. Nardello et al., MEASUREMENT OF PHOTOGENERATED SINGLET OXYGEN (O-1(2) ((1)DELTA(G))) IN AQUEOUS-SOLUTION BY SPECIFIC CHEMICAL TRAPPING WITH SODIUM 1,3-CYCLOHEXADIENE-1,4-DIETHANOATE, Journal of photochemistry and photobiology.B, Biology, 39(2), 1997, pp. 146-155
Citations number
41
Categorie Soggetti
Biophysics,Biology
Journal title
Journal of photochemistry and photobiology.B, Biology → ACNP
ISSN journal
10111344
Volume
39
Issue
2
Year of publication
1997
Pages
146 - 155
Database
ISI
SICI code
1011-1344(1997)39:2<146:MOPSO(>2.0.ZU;2-D
Abstract
A new method for the determination of the quantum yields of singlet ox ygen (O-1(2)((1) Delta(g))) formation in aqueous media is described. I t is based on the chemical trapping of O-1(2) with sodium 1,3-cyclohex adiene-1,4-diethanoate (CHDDE), a specific, water-soluble trap which e xhibits transparency to visible and near-UV light. The advantages and limits of this method are illustrated with various photosensitizers: n alidixic acid, rose bengal and sodium tetraphenylporphine tetrasulphon ate.