[Study of the kinetics of chlorophyll photosensitized dye reduction by photopolarography].
It has been shown by photopolarographic method that under stationary illumination chlorophyll-photosensitized reduction of dyes with ascorbic acid proceeds according to the first kinetic order. Rate constants of photoreduction of vitamin K3, methelene red, safranin-T and methylviologen were found in the course of sensitization which proceeded by oxidative and reduction mechanisms. Similarity of kinetics at both sensitization mechanisms was shown. Results obtained by polarographic and spectroscopic methods were compared.
D001205:Ascorbic Acid; D001391:Azo Compounds / Q000528:radiation effects; D002734:Chlorophyll; D004396:Coloring Agents / Q000528:radiation effects*; D007700:Kinetics; D008027:Light; D010084:Oxidation-Reduction; D010269:Paraquat / Q000528:radiation effects; D010619:Phenazines / Q000528:radiation effects; D011048:Polarography / Q000379:methods; D013053:Spectrophotometry; D014812:Vitamin K / Q000528:radiation effects; D062367:ortho-Aminobenzoates / Q000528:radiation effects
D001391:Azo Compounds; D004396:Coloring Agents; D010619:Phenazines; D062367:ortho-Aminobenzoates; D014812:Vitamin K; D002734:Chlorophyll; D010269:Paraquat; D001205:Ascorbic Acid
Izuchenie kinetiki fotosensibilizirovannogo khlorofillom vosstanovleniia krasiteleĭ metodom fotopoliarografii.