A Molecule-imprinted Electrochemiluminescence Sensor Based on CdS@MWCNTs for Ultrasensitive Detection of Fenpropathrin

Overview

Journal Mikrochim Acta

Specialties Biotechnology
Chemistry

Date 2024 Apr 17

PMID 38630309

Authors

Qian Wu

Li Tian

Xiangyu Shan

Huiling Li

Shuning Yang

Chao Li

Yujia Song

Ruidan Li

Yanjia Guo

Juan Lu

Affiliations

Soon will be listed here.

Abstract

A molecularly-imprinted electrochemiluminescence sensor was constructed for the determination of fenpropathrin (FPT) by molecular imprinting technology. In this sensing platform, the introduction of CdS@MWCNTs significantly enhanced the initial ECL signal of the luminol-O system. Specifically, MWCNTs was used as a carrier to adsorb more CdS, in which CdS acted as a co-reaction promoter for luminescence. Molecularly imprinted polymer (MIP) containing specific recognition sites of FPT was used as the material for selective recognition. With increasing amount of FPT the ECL signal decreased. Under the optimum conditions, the ECL response was linearly related to the logarithm of FPT concentration. The developed ECL sensor allowed for sensitive determination of FPT and exhibited a wide linear range from 1.0 × 10 mol L to 1.0 × 10 mol L. The limit of detection was 3.3 × 10 mol L (S/N = 3). It can be used for the detection of FPT in vegetable samples.

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