期刊
REACTIVE & FUNCTIONAL POLYMERS
卷 169, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2021.105069
关键词
Asulam; Dopamine; Molecularly imprinted polymer; g-C3N4
A new method based on in-situ electropolymerization of dopamine and asulam was presented to fabricate a molecularly imprinted polymer with high selectivity and sensitivity in ASL detection. The method showed good linear range area and was successfully applied for ASL detection in real samples.
In this work, a new method is presented based on in-situ electropolymerization of dopamine (DA) monomer and asulam (ASL) as a target molecule to fabricate a molecularly imprinted polymer (MIP) on a glassy carbon electrode (GCE). In this regard, the most basic feature of the prepared sensor is that after template extraction the target molecule, cavities with the same size and stereochemical properties of it, remain on the imprinted polymer matrix. Accordingly, the developed sensing platform showed high selectivity and great sensitivity in ASL detection. The proposed method showed good linear range area from 0.5 to 20 pM with limit of detection of 0.17 pM. The influences of electropolymerization conditions e.g. incubation time, monomer to template concentration, cycle numbers and template extraction time were studied. Finally, it was applied for ASL detection in real samples, and the results were consistent with high-performance liquid chromatography obtained results.
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