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Improved DPPH determination for antioxidant activity spectrophotometric assay
Szabo, M. R., Idiţoiu, C., Chambre, D. and Lupea, A. X. Improved DPPH determination for antioxidant activity spectrophotometric assay Chemical Papers, Vol.61, No. 3, 2007, 214-216
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Szabo, M. R.
Idiţoiu, C.
Chambre, D.
Lupea, A. X.
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| Title |
Improved DPPH determination for antioxidant activity spectrophotometric assay
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
3
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| ISSN |
0366-6352
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| Start page |
214
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| End page |
216
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
250000 Chemical Sciences
250300 Organic Chemistry
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| 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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