Improved DPPH determination for antioxidant activity spectrophotometric assay

DOI 1 Citations

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<jats:title>Abstract</jats:title><jats:p>An improved procedure for determination of the residual DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical concentration was proposed taking into account the absorbance of both DPPH free radicals and DPPH nonradical (1,1-diphenyl-2-picrylhydrazine) stable form. The calculated residual DPPH free radical concentrations were compared with those obtained from a calibration curve and variation coefficients below 10 % were found.</jats:p>

Journal

  • Chemical Papers

    Chemical Papers 61 (3), 2007-01-01

    Springer Science and Business Media LLC

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