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A Novel Tyrosinase Biosensor based on Graphene and Co3O4 Nanocomposite Materials for Rapid Determining Catechol

文献类型： 外文期刊

作者： Liang, Kehong 1 ; Fu, Xiaochen 2 ; Wu, Lidong 2 ; Qin, Yuchang 1 ; Song, Yi 2 ;

作者机构： 1.Minist Agr, Inst Food & Nutr Dev, Beijing 100081, Peoples R China

2.Chinese Acad Fishery Sci, Beijing 100141, Peoples R China

关键词： Electrochemical biosensor;tyrosinase;rapid dectection;catechol

期刊名称：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE （ 影响因子：1.765； 五年影响因子：1.685 ）

ISSN： 1452-3981

年卷期： 2016 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Based on graphene and Co3O4 nanocomposite (GP-Co3O4), a novel tyrosinase biosensor is constructed for rapid determining catechol. The results demonstrated that GP-Co3O4 modified tyrosinase biosensor possessed fantastic advantages over tyrosinase biosensor in sensitivity and limit of detection (LOD). This might be ascribed to the large specific surface area of graphene and spongy Co3O4. The GP-Co3O4 modified tyrosinase biosensor showed superb analytical performances, such as a linear range from 1 to 30 mu mol L-1, LOD of 30 nmol L-1, and sensitivity of 1856.8 mA cm(-2) M-1. The tyrosinase biosensor was successfully utilized for detecting catechol, and proved to be a potential and reliable method for analysis emergency affairs of catechol on-site.

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