Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.

Imidacloprid is a neonicotinoid insecticide widely used in the production and cultivation of crops. In recent years, the extensive use of imidacloprid in agricultural production has resulted in large amounts of pesticide residues in agricultural products and the environment. Therefore, it is necessa...

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Autores principales:	Sihua Peng, Shuyan Yang, Xi Zhang, Jingjing Jia, Qiulin Chen, Yuyang Lian, Aqiang Wang, Bei Zeng, Heming Yang, Jinlei Li, Jianguo Dan, Jianjun Liao, Shihao Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8c8968befaf94d17a1717fb27578009a
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spelling	oai:doaj.org-article:8c8968befaf94d17a1717fb27578009a2021-12-02T20:08:32ZAnalysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.1932-620310.1371/journal.pone.0257042https://doaj.org/article/8c8968befaf94d17a1717fb27578009a2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0257042https://doaj.org/toc/1932-6203Imidacloprid is a neonicotinoid insecticide widely used in the production and cultivation of crops. In recent years, the extensive use of imidacloprid in agricultural production has resulted in large amounts of pesticide residues in agricultural products and the environment. Therefore, it is necessary to establish a rapid, accurate, sensitive and convenient method for detecting imidacloprid pesticide residues to ensure the safety of agricultural products and the environment. To clarify how to use the molecular imprinting method for the electrochemical rapid residue detection of imidacloprid. This paper selected reduced graphene oxide and gold nanoparticles as modifiers modified on screen-printed carbon electrodes (SPCE) chitosan as a functional monomer, and imidacloprid as template molecule to prepare molecularly imprinted polymer, and applied this sensor to the residue detection of imidacloprid. The results showed that the concentration of imidacloprid showed a good linear relationship with the peak response current, and the detection limit of imidacloprid was 0.5 μM, while the sensor had good repeatability and interference resistance. The recoveries of imidacloprid spiked on three samples, mango, cowpea and water, were in the range of 90-110% (relative standard deviation, RSD<5%), which proved the practicality and feasibility of the assay established in this paper. The results of this paper can be used as a basis for the research on the detection of imidacloprid pesticide residues in food or environment.Sihua PengShuyan YangXi ZhangJingjing JiaQiulin ChenYuyang LianAqiang WangBei ZengHeming YangJinlei LiJianguo DanJianjun LiaoShihao ZhouPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0257042 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sihua Peng Shuyan Yang Xi Zhang Jingjing Jia Qiulin Chen Yuyang Lian Aqiang Wang Bei Zeng Heming Yang Jinlei Li Jianguo Dan Jianjun Liao Shihao Zhou Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
description	Imidacloprid is a neonicotinoid insecticide widely used in the production and cultivation of crops. In recent years, the extensive use of imidacloprid in agricultural production has resulted in large amounts of pesticide residues in agricultural products and the environment. Therefore, it is necessary to establish a rapid, accurate, sensitive and convenient method for detecting imidacloprid pesticide residues to ensure the safety of agricultural products and the environment. To clarify how to use the molecular imprinting method for the electrochemical rapid residue detection of imidacloprid. This paper selected reduced graphene oxide and gold nanoparticles as modifiers modified on screen-printed carbon electrodes (SPCE) chitosan as a functional monomer, and imidacloprid as template molecule to prepare molecularly imprinted polymer, and applied this sensor to the residue detection of imidacloprid. The results showed that the concentration of imidacloprid showed a good linear relationship with the peak response current, and the detection limit of imidacloprid was 0.5 μM, while the sensor had good repeatability and interference resistance. The recoveries of imidacloprid spiked on three samples, mango, cowpea and water, were in the range of 90-110% (relative standard deviation, RSD<5%), which proved the practicality and feasibility of the assay established in this paper. The results of this paper can be used as a basis for the research on the detection of imidacloprid pesticide residues in food or environment.
format	article
author	Sihua Peng Shuyan Yang Xi Zhang Jingjing Jia Qiulin Chen Yuyang Lian Aqiang Wang Bei Zeng Heming Yang Jinlei Li Jianguo Dan Jianjun Liao Shihao Zhou
author_facet	Sihua Peng Shuyan Yang Xi Zhang Jingjing Jia Qiulin Chen Yuyang Lian Aqiang Wang Bei Zeng Heming Yang Jinlei Li Jianguo Dan Jianjun Liao Shihao Zhou
author_sort	Sihua Peng
title	Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
title_short	Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
title_full	Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
title_fullStr	Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
title_full_unstemmed	Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
title_sort	analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/8c8968befaf94d17a1717fb27578009a
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Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors.

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