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Study of the Histamine Electrochemical Oxidation Catalyzed by Nickel Sulfate

Koita, Démo and Tzedakis, Théo and Kane, Cheikhou and Diaw, Mahy and Sock, Oumar and Lavedan, Pierre Study of the Histamine Electrochemical Oxidation Catalyzed by Nickel Sulfate. (2014) Electroanalysis, 26 (10). 2224-2236. ISSN 1040-0397

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Official URL: https://doi.org/10.1002/elan.201400155


Thin layer technique was applied to the indirect anodic oxidation of histamine, catalyzed by NiSO4. Coulometric determination of the electron number demonstrates that histamine complexes Ni(II) and resulting adducts can be electrochemically oxidized in a single‐electron reaction, to lead Ni(III)‐histamine. The system Ni(III)/Ni(II) acts as ‘redox mediator’ for histamine oxidation. The equilibrium constant of the Ni(II)‐histamine complex formation was 106 , value showing the strong affinity between species. High content of histamine (>0.1 M), detected in fresh fish (previously exposed to the sun) extracts, showing potentialities for future design of a sensor for direct measurement in fish.

Item Type:Article
HAL Id:hal-01899459
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université Cheikh Anta Diop de Dakar - UCAD (SENEGAL)
Laboratory name:
Deposited On:19 Oct 2018 13:01

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