Investigation of the antioxidant property of ascorbic acid

被引：27

作者：

Lu, Xiaoquan ^{[1
]}

Nan, Mina ^{[1
]}

Zhang, Hairui ^{[1
]}

Liu, Xiuhui ^{[1
]}

Yuan, Huiqing ^{[1
]}

Yang, Jiandong ^{[1
]}

机构：

[1] NW Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2007年 / 111卷 / 41期

关键词：

D O I：

10.1021/jp072551i

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The antioxidant property of ascorbic acid (AA) was demonstrated during the process of electron transfer (ET) and the corresponding effects of AA were visibly affected by using porphyrin zinc with various substitutes as oxidants. As electron receptors, porphyrin zinc molecules obtained the electron that came from the electron donor AA, which was perfectly convenient for the simulated antioxidant reaction. The results of the obtained kinetics data showed that the antioxidant property of AA may be affected owing to the difference of the oxidants. Experimental results showed that thin-layer cyclic voltammetry (TLCV) and scanning electrochemical microscopy (SECM) were applied as investigating means to evaluate the rate constant of electron transfer achieved and expressed concerns about the simplicity and reliability, and they were also more vigorous methods to study the simulated biomembrane.

引用

页码：14998 / 15002

页数：5

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