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Citation: LONG Fang, ZHANG Zhao-Hui, WANG Jing, YAN Liang, LV Piao-Piao, YANG Zhao-Xia. Magnetic Graphene Modified Imprinted Electrochemical Sensor for Detection of 4-Octylphenol[J]. Chinese Journal of Analytical Chemistry, ;2016, 44(6): 908-914. doi: 10.11895/j.issn.0253-3820.160016 shu

Magnetic Graphene Modified Imprinted Electrochemical Sensor for Detection of 4-Octylphenol

1.
College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
2.
Key laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province, Jishou University, Jishou 416000, China;
3.
State Key Laboratary of Chemo Biosensing and Chemometrics, Hunan University, Changsha 410082, China

Received Date: 8 January 2016
Revised Date: 24 March 2016

Fund Project: This work was supported by the National Natural Science Foundation of China (Nos. 21267010, 21565014)

Figures(6)

A novel magnetic imprinted electrochemical sensor was prepared based on magnetic graphene modified carbon electrode with 4-octylphenol (4-OP) as the template molecule and dopamine as the functional monomer. The morphology of the imprinted sensor based on magnetic graphene was characterized with scanning electron microscopy. The electrochemical performances of the molecularly imprinted sensor were characterized with cyclic voltammetry and differential pulse voltammetry (DPV). The results showed that the imprinted electrochemical sensor had special recognition ability toward 4-OP. The magnetic imprinted electrochemical sensor performance was optimized by using DPV method. The results showed that the response current of the imprinted electrochemical sensor revealed a linear relationship with the negative logarithm of 4-OP concentrations range of 5.0×10^-6 -5.0×10^-9 mol/L with the detection limit of 3.64×10^-10 mol/L (S/N=3). The molecularly imprinted electrochemical sensor was successfully used to detect 4-OP in water samples with the recoveries of 96.0%-104.0%.
- Molecularly imprinted,
- Magnetic graphene,
- Electrochemical sensor,
- Dopamine,
- 4-Octylphenol
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1.
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