INFLUENȚA ACIZILOR HUMICI ASUPRA TRANSFORMĂRILOR FOTOCHIMICE ALE CISTEINEI ÎN MEDIUL ACVATIC

Vladislav BLONSCHI, Viorica GLADCHI Universitatea de Stat din Moldova

Abstract

THE INFLUENCE OF HUMIC ACIDS ON CYSTEINE'S PHOTOCHEMICAL TRANSFORMATIONS  IN AQUATIC ENVIRONMENT 

The results of the kinetic study of photo-oxidation of cysteine in the presence of humic acids, on model systems, irradiation with different artificial sources of radiation are presented in this paper. The values of the initial oxidation velocities and the determined effective rate constants are in line with the literature data, being 10-8-10-9 M/s and 10-4-10-5s-1respectively. 

Keywords: photooxidation, cysteine, humic acids, initial oxidation rate, effective rate constant.