engleski

Electrochemical Study of Cadmium Complexation with Cysteine and Cystine in Electrolyte Solutions

The complexation of toxic metal Cd(II) with cysteine, as an essential amino acid, has been studied to define the stoichiometric stability constants of Cd-cysteinate complex at 0.59 M ionic strength. Optimal experimental conditions were defined to follow and quantify the formation of Cd-cysteinate complex. The 1:1 molar ratio of Cd to cysteine, and cysteine to Cd, was defined for Cd-cysteinate complex formed under the defined conditions in a DP mode on HMDE. From mass balance equations the stoichiometric stability constants of Cd-cysteinate complex were determined under various titration conditions. Grand average amounts to 5.75E7 M-1.

Cysteine; cystine; cadmium speciation; cadmium-cysteinate complex; mass balance equations; stoichiometric stability constants; differential pulse (DP) excitation mode

Sheriban Ramani upisala je 2002. godine poslijediplomski studij "Environmental Chemistry" na Odsjeku za kemiju, Fakulteta za prirodne znanosti Sveučilišta u Prishtini.U potpunosti je rad izradila u Laboratoriju za biološke učinke metala, Zavoda za istraživanje mora i okoliša Instituta R. Bošković, tijekom boravaka od 2004 godine.