Improved DPPH determination for antioxidant activity spectrophotometric assay

Szabo, M. R., IdiŇ£oiu, C., Chambre, D. and Lupea, A. X. Improved DPPH determination for antioxidant activity spectrophotometric assay Chemical Papers, Vol.61, No. 3, 2007, 214-216

Document type: ńĆl√°nok z ńćasopisu / Journal Article
Collection: Chemical papers  

Author(s) Szabo, M. R.
IdiŇ£oiu, C.
Chambre, D.
Lupea, A. X.
Title Improved DPPH determination for antioxidant activity spectrophotometric assay
Journal name Chemical Papers
Publication date 2007
Year available 2007
Volume number 61
Issue number 3
ISSN 0366-6352
Start page 214
End page 216
Place of publication Poland
Publisher Versita
Collection year 2007
Language english
Subject 250000 Chemical Sciences
250300 Organic Chemistry
Abstract/Summary 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.
 
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