Eh measurement in the food industry
Redox potential (Eh) of food matrices

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Eh measurement in the food industry


Redox potential (Eh) of food matrices

Authors : Rémy CACHON, Joëlle De CONINCK

Publication date: September 10, 2012, Review date: January 15, 2018 | Lire en français

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1. Eh measurement in the food industry

1.1 Principles and associated measurement systems

The redox potential (E ) is expressed in relation to a reference, the normal hydrogen electrode, so it is noted E h , and its units are expressed in mV or V.

The measurement involves two half-stacks, one of which must implement the reference pair H + /H 2 , and the other the system whose potential is to be measured.

The two half-batteries are, in fact, each made up of a solute and an electrode, the solutes are linked together by a salt bridge that allows them to exchange ions, and the electrodes are linked together by an electrical circuit on which a...

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