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Facile synthesized SnO 2 decorated functionalized graphene modified electrode for sensitive determination of daidzein

Facile synthesized SnO 2 decorated functionalized graphene modified electrode for sensitive determination of daidzein

Yamin Fu, Lu Wang, Yinghao Duan, Lina Zou, Baoxian Ye

Talanta. 2017 Jun 1;168:1-9.

PMID: 28391825

Abstract:

A one-step and facile method using SnCl2·H2O as reducing agent to reduce graphene oxide (GO) was performed in the aid of poly(diallyldimethylammonium chloride) solution (PDDA). SnCl2·H2O is not only a reducing agent for graphene oxide (GO), but also a precursor of SnO2. SnO2-PDDA-GR composite was characterized by various surface, structural and electrochemical analysis techniques, such as transmission electron microscopy (TEM), UV spectrum (UV-vis), Infrared Spectrum (IR), X-ray diffraction (XRD), Cyclic voltammograms (CV) and electrochemical impedance (EIS). The SnO2-PDDA-GR composite was used to constructed electrochemical sensor (SnO2-PDDA-GR/GCE) for the determination of daidzein. Under the optimized experimental condition, it was found that the response of peak current is linear to the concentration of daidzein in the ranges of 2.0×10-8 -1.0×10-6molL-1, and the detection limit was estimated to be 6.7×10-9mol L-1 (S/N=3). Furthermore, this sensor was successfully applied for the determination of daidzein in traditional Chinese medicine (pueraria lobata) and Daidzein tablets.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP26062793	Poly(diallyldimethylammonium chloride) solution		26062-79-3	Price
AP7398698	Diallyldimethylammonium chloride solution		7398-69-8	Price

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