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AssigneesUniversite De Bordeaux, Institut Polytechnique De Bordeaux, Centre National De La Recherche Scientifique
InventorsStéphane Arbault, Stéphane Reculusa, Alexander Kuhn, Neso Sojic, Pascal Masse
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The invention relates to an electrochemical method and device for detecting and/or quantifying sulphur dioxide (S(¾) in its various uncomplexed forms (molecular and ionic) in an aqueous or hydroalcoholic liquid food product. It also relates to a method for regenerating an electrode, the active surface of which is composed of gold. The electrochemical method for detecting and/or quantifying sulphur dioxide (SO2) in its uncomplexed (free) forms in an aqueous or hydroalcoholic liquid food product of the invention comprises: a) introducing into the liquid food product a measuring electrode, the active surface of which, in contact with the liquid food product is entirely made of gold, b) measuring the variation of the current produced by the oxidisation of the free SC½, present in the food liquid, during a potential sweep by cyclic voltammetry. In particular, the invention is used for measuring free S(¾).
An electrochemical method for the detection and/or quantification of sulphur dioxide (SO2) in its non-complexed forms called “free” in an aqueous or hydroalcoholic liquid-food, comprising:
A method for regenerating in the liquid-food an electrode of which the active surface is entirely in gold, wherein it comprises:
An electrochemical device for the detection and/or quantification of the free SO2 in an aqueous or hydroalcoholic liquid-food, comprising:
Dependencies are inferred from the claim text.