Relying on the principle of the ridakchan reaction when Fe3 + e – received from Fe2 + sample will have to experiment with a complex Ferrric compound tripyridyltriazine (Fe3 +-TPTZ), which is the soluble colorless. When electrons from a substance, for example, to change to the complex compound Ferrous (Fe2 +-TPTZ) tripyridyltriazine purple or blue if the Fe2 +-TPTZ occurs, the more it shows that the sample contains antioxidant capabilities.
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