Improved DPPH determination for antioxidant activity spectrophotometric assay

被引：1
|
作者：
M. R. Szabo
C. Idiţoiu
D. Chambre
A. X. Lupea
机构：
[1] “Aurel Vlaicu” University,Chemical and Technological Research Centre, Food Engineering, Tourism, and Environmental Protection Faculty
[2] “Politehnica” University from Timişoara,Chemistry and Organic Technologies Department
[3] FCIIM,undefined
来源：
Chemical Papers | 2007年 / 61卷
关键词：
DPPH determination; antioxidant activity; spectrophotometric assay; free radicals;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：214 / 216
页数：2
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