科研之友
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摘要
The antioxidant activity of Thymusfloral water, which has medicinal properties, has been evaluated in different concentrations and constant pH by square wave voltammetry and DPPH free radical trapping measurements. For superior comparison in aqueous medium, ascorbic acid was used as an appropriate standard. The electrochemical method can be used for the antioxidant capability, because of the correlation found between anti-radical and oxidation potentials. In addition, the results from square wave voltammetry are mostly consistent with the results of DPPH free radical trapping measurements, and the benefits are simplicity, high-speed method, low amounts of sample and solvent, accuracy, and also there is no need to use some chemical reagents and sample preparation. Furthermore, the square wave voltammetry method is more sensitive method for assessment the antioxidant activities in comparison with DPPH method.
- 出版日期2018
