Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7232982 | Biosensors and Bioelectronics | 2015 | 7 Pages |
Abstract
Herein, we present a novel electrochemical sensor for the determination of chloramphenicol (CAP), which is based on multiwalled carbon nanotubes@molecularly imprinted polymer (MWCNTs@MIP), mesoporous carbon (CKM-3) and three-dimensional porous graphene (P-r-GO). Firstly, 3-hexadecyl-1-vinylimidazolium chloride (C16VimCl) was synthetized by using 1-vinylimidazole and 1-chlorohexadecane as precursors. Then, C16VImCl was used to improve the dispersion of MWCNT and as monomer to prepare MIP on MWCNT surface to obtain MWCNTs@MIP. After that, the obtained MWCNTs@MIP was coated on the CKM-3 and P-r-GO modified glassy carbon electrode to construct an electrochemical sensor for the determination of CAP. The parameters concerning this assay strategy were carefully considered. Under the optimal conditions, the electrochemical sensor offered an excellent response for CAP. The linear response ranges were 5.0Ã10â9-5Ã10â7 mol Lâ1 and 5.0Ã10â7-4.0Ã10â6, respectively, and the detection limit was 1.0Ã10â10 mol Lâ1. The electrochemical sensor was applied to determine CAP in real samples with satisfactory results.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Guangming Yang, Faqiong Zhao,