期刊论文

Deng, Peihong

英文

Food Chemistry

0308-8146

2015

180

156-163

10.1016/j.foodchem.2015.02.035

This work was supported by the Project of National Natural Science Foundation of China (Nos. 21105024 and 21472038 ), the Project of Science and Technology Department of Hunan Province ( 2014SK3178 ) and the Key Discipline Project of Hunan Province .

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The graphene-polyvinylpyrrolidone composite film modified acetylene black paste electrode (GR-PVP/ABPE) was fabricated and used to determine vanillin. In 0.1 M H3PO4 solution, the oxidation peak current of vanillin increased significantly at GR-PVP/ABPE compared with bare ABPE, PVP/ABPE and GR/ABPE. The oxidation mechanism was discussed. The experimental conditions that exert influence on the voltammetric determination of vanillin, such as supporting electrolytes, pH values, accumulation potential and accumulation time, were optimized. Besides,...