AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
|
|||||||
Rezumat articol ediţie STUDIA UNIVERSITATIS BABEŞ-BOLYAI În partea de jos este prezentat rezumatul articolului selectat. Pentru revenire la cuprinsul ediţiei din care face parte acest articol, se accesează linkul din titlu. Pentru vizualizarea tuturor articolelor din arhivă la care este autor/coautor unul din autorii de mai jos, se accesează linkul din numele autorului. |
|||||||
STUDIA CHEMIA - Ediţia nr.4 din 2013 | |||||||
Articol: |
ELECTROCHEMICAL BEHAVIOR OF SOME CATECHOLAMINES INVESTIGATED BY CYCLIC AND SQUARE-WAVE VOLTAMMETRY. Autori: GRAZIELLA LIANA TURDEAN, DORINA CASONI. |
||||||
Rezumat:
Electrochemical measurements of the oxidation of organic compounds can be helpful to understand how these compounds are metabolized by living organisms. Cyclic and square-wave voltammetry were used in view to estimate the electrochemical parameters of redox processes involving catecholamines compounds (isoprenaline, epinephrine, levonordefrin, norepinephrine, dopamine, d-DOPA and carbidopa). Redox processes related to catecholamines are quasi-reversible diffusion controlled reactions at a graphite electrode. According to the decreasing of the oxidation potential, the capacity to act as antioxidant of different catecholamines increases in the order: norepinephrine < levonordefrin < epinephrine < isoprenaline or carbidopa < d-DOPA < dopamine. Both series are influenced by the position of –OH and –NH2 in para-alkyl substituents. Keywords: catecholamine, cyclic voltammetry, square wave voltammetry, antioxidant capacity.
|
|||||||