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    STUDIA CHEMIA - Issue no. 1 / 2008  
         
  Article:   ELECTROCHEMISTRY OF IRON (III) PROTOPORPHYRIN (IX) SOLUTION AT GRAPHITE ELECTRODE.

Authors:  GRAZIELLA LIANA TURDEAN, CAMELIA FĂRCAŞ, AMELIA F. PALCU, MARINELLA S. TURDEAN.
 
       
         
  Abstract:  Cyclic voltammmetry was used to investigate the electrochemical properties of iron (III) protoporphyrin (IX) (hemin, Fe(III)P) dissolved in TRIS buffer at a graphite electrode. A quasi-reversible single electron transfer attributed to the Fe(III)P/Fe(II)P redox process controlled by diffusion was identified. The pH influence on the electrochemical activity of hemin and its electrocatalytic behaviour towards nitrite reduction was also investigated and demonstrated.  
         
     
         
         
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