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  • Title: Spectrophotometric determination of inorganic phosphate in the presence of thiol compounds.
    Author: Yamato S, Sahara I, Sugihara H, Shimada K.
    Journal: Anal Biochem; 1986 Nov 01; 158(2):268-71. PubMed ID: 3812971.
    Abstract:
    A spectrophotometric method for inorganic phosphate determination in the presence of thiol compounds is described. Thiol compounds, which interfere with the measurement of inorganic phosphate by a modification of the method of Gomori, are removed by carboxymethylation by iodoacetate prior to the formation and reduction of phosphomolybdate complex. A linear standard curve is obtained by this method, and the method is suitable for the assay of a phosphate-releasing enzyme when the measurement must be performed in the presence of thiol compounds.
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