Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 287, Issue -, Pages 551-556Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2019.02.079
Keywords
Ni(OH)(2); Nanoarray; Molecularly imprinted polymer; Sulfapyridine; Electrochemical sensor
Funding
- National Natural Science Foundation of China [21775053, 21627809, 21575050, 21505051]
- Natural Science Foundation of Shandong Province [ZR2017MB027]
- China Scholarship Council (CSC)
Ask authors/readers for more resources
Molecularly imprinted polymer (MIP) electrochemical sensor (MIP-EC sensor) has great potential in the electroanalytical chemistry field, especially in detection of small molecular contaminants, but still remains severe challenges, such as low reproducibility and low sensitivity. To overcome these difficulties, nanoarray electrodes as sensitive sensor platforms is an excellent selection for fabricating MIP-EC sensors. In this communication, Ni (OH)(2)nanoarrays in situ grown on nickel foam (Ni(OH)(2)/NF) was prepared and used as sensing platform. The MIPs in situ adsorbed on Ni(OH)(2)/NF (MIP/Ni(OH)(2)/NF) was prepared and used as the specific identification part to the template molecule. Accompanied with [Fe(CN)(6)](3-)/[Fe(CN)(6)](4-) as the redox probe and differential pulse voltammetry (DPV) as the detection method, the MIP-EC sensor for sensitive detection of sulfapyridine was simply developed. Under optimized conditions, the presented MIP-EC sensor exhibits the linear range of 5.9 x 10(-7)-1.34 x 10(-3) mol L-1 and the low limit of detection (LOD) of 3.57 x 10(-7) mol L-1 (S/N = 3). Furthermore, due to the good electric properties of Ni(OH)(2)/NF electrode and specific recognition properties of MIPs, the MIP-EC sensor shows a high imprinting efficiency, exhibits excellent selectivity, sensitivity, stability and reproducibility. This study provided an efficient and simple approach for detection of sulfapyridine in fish products, and provided a promising and potential approach for detecting small molecular contaminants in many fields.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available