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吉林化工学院学报, 2020, 37(3): 15-19     https://doi.org/10.16039/j.cnki.cn22-1249.2020.03.003
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GO-SiO2-CMC修饰玻碳电极制备生物传感器对VB6的痕量检测研究
信宇航1 ,宋蕊1 ,孙启元1 ,高迪2,崔萌1*
1.吉林化工学院 材料科学与工程学院,吉林 吉林 132011; 2.国家能源集团 吉林热电厂,吉林 吉林 132011
Trace detection of VB6 by biosensor prepared by Go-SiO2-CMC modified glassy carbon electrode
XIN Yuhang1,SONG Rui1,SUN Qiyuan1,GAO Di2,CUI Meng*
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摘要 

成功制备了氧化石墨烯(GO)和SiO2/CMC的复合膜(GO-SiO2-CMC),将其修饰固体玻碳电极后构成电化学传感器用于维生素B6(VB6)的痕量检测。利用扫描电子显微镜和电化学技术分别研究该复合膜的微观形貌和电化学性能。结果表明,修饰电极对VB6表现出较强的电化学敏感性,对VB6的检测具有较高的灵敏度(31.5μAmM-1cm-2)、较低的检测限(10-7M)和较小的表面阻抗值(252Ω)。GO-SiO2-CMC对VB6的检测,提供了一种新型的简单高效的VB6检测技术。

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信宇航
宋蕊
孙启元
高迪
崔萌
关键词:  羧甲基纤维素  VB6  复合电化学生物传感器  氧化石墨烯     
Abstract: 

A novel platform based on reduced graphene oxide and SiO2/CMC hybrid membranes(GO-SiO2-CMC) was successfully constructed for the fabrication of biosensor. The morphologies and electrochemistry of the nanocomposite film were investigated by using scanning electron microscopy and electrochemical techniques including electrochemical impedance spectroscopy and cyclic voltammetry (CV), respectively. The results suggested that the modified electrode showed enhanced sensitivity towards the oxidation of Vitamin B6 (VB6), e.g., high detection sensitivity (31.5μAmM-1cm-2), a low limit of detection (10-7M), a small Ret value (252Ω) and a good stability. This might be attributed to large surface-to-volume ratio and high conductivity of graphene, which could promote direct electron transfer between the surface of electrodes and Vitamin B6 (VB6). These above results offered a simple, sensitive and flexible method for quantitative detection of Vitamin B6 through the technology of electrochemical.

Key words:  carboxymethyl cellulose    VB6    composite electrochemical biosensor    graphene oxide
               出版日期:  2020-03-25      发布日期:  2020-03-25      整期出版日期:  2020-03-25
TQ 31  
引用本文:    
信宇航, 宋蕊, 孙启元, 高迪, 崔萌. GO-SiO2-CMC修饰玻碳电极制备生物传感器对VB6的痕量检测研究 [J]. 吉林化工学院学报, 2020, 37(3): 15-19.
XIN Yuhang, SONG Rui, SUN Qiyuan, GAO Di, CUI Meng. Trace detection of VB6 by biosensor prepared by Go-SiO2-CMC modified glassy carbon electrode . Journal of Jilin Institute of Chemical Technology, 2020, 37(3): 15-19.
链接本文:  
https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2020.03.003  或          https://xuebao.jlict.edu.cn/CN/Y2020/V37/I3/15
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