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The total contents of maleic and fumaric acids (cis and trans-2-butenedioic acids, respectively) were quantified by a high performance liquid chromatography method, in 50 floral honeys of Galicia (north-western Spain). Honey pH, activity coefficients, dissociation constants of the acids (K1 and K2), and the molar concentrations of the forms of maleic and fumaric acids naturally present in honey ([AH...
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