INFLUENȚA ACIZILOR HUMICI ASUPRA TRANSFORMĂRILOR FOTOCHIMICE ALE CISTEINEI ÎN MEDIUL ACVATIC

Vladislav BLONSCHI, Viorica GLADCHI

Abstract


În articol sunt expuse rezultatele studiului cinetic al fotooxidării cisteinei în prezența acizilor humici, pe sisteme model, la iradierea cu diferite surse artificiale de radiație. Valorile vitezelor inițiale de oxidare, precum și ale constantelor efective de viteză determinate, sunt în bună concordanță cu datele din literatura de specialitate, fiind de 10-8-10-9 M/s și, respectiv, de 10-4-10-5s-1..

 

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.

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References


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