Sensitive extraction of seven pesticide residues from environmental water with magnetic graphene oxide-based covalent organic framework.

Autor: Cui Y; Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China., Yang X; Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China., Zhao N; Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China., Xin X; Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China., Han D; Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China. Electronic address: hdd@hbu.edu.cn., Yan H; Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding 071002, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China. Electronic address: yanhy@hbu.edu.cn.
Jazyk: angličtina
Zdroj: Journal of chromatography. A [J Chromatogr A] 2024 Sep 13; Vol. 1732, pp. 465209. Date of Electronic Publication: 2024 Jul 23.
DOI: 10.1016/j.chroma.2024.465209
Abstrakt: The use of pesticides has increased with the development of agriculture. However, due to the trace content and the matrix's inherent complexity in environmental water, development of rapid and sensitive detection method present significant challenges in the analysis of pesticide residues. The study synthesized magnetic graphene oxide (MGO) by combining superparamagnetic nanoparticles with the easy modification of graphene oxide (GO). Covalent organic frameworks (COFs) were then modified to have a large specific surface area. Finally, magnetic graphene oxide-based covalent organic frameworks, namely MGO-COFs, were obtained with a spherical structure and used as magnetic solid-phase extraction materials, which was successfully used to determine the seven pesticide residues in environmental samples in conjunction with high performance liquid chromatography. The method has a wide linear range for the tested pesticides, with satisfactory correlation coefficients (R ≥ 0.099) and low detection limits (0.3-1.21 μg L -1 ). The correlation coefficients for all seven pesticides were high (R 2 ≥ 0.9996). The spiked recoveries, exhibiting a range of 91.3 to 109 %, demonstrated that the developed MGO-COF-MSPE-HPLC-UV method is simple, efficient, and suitable for the analysis and detection of seven pesticide residues in environmental water.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024. Published by Elsevier B.V.)
Databáze: MEDLINE
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