Direct Electrochemical Determination of Glyphosate Herbicide Using a Screen-Printed Carbon Electrode Modified with Carbon Black and Niobium Nanoparticles

作     者：Julia Oliveira Fernandes Cassiano Augusto Rolim Bernardino Juliana dos Santos Fernandes Claudio Fernando Mahler Bernardo Ferreira Braz Luiz Henrique Carpenter dos Santos Rodrigo JoséCorrêa Ricardo Erthal Santelli Braulio Soares Archanjo Emerson Schwingel Ribeiro Fernando Henrique Cincotto 

作者机构：Departament of Analytical ChemistryInstitute of ChemistryFederal University of Rio de JaneiroRio de Janeiro 21941-909Brazil Departament of Civil EngineeringCOPPEFederal University of Rio de JaneiroRio de Janeiro 21941-598Brazil National Institute of Science&Technology of Bioanalytics(INCTBio)CampinasSão Paulo 13083-862Brazil Departament of Inorganic ChemistryInstitute of ChemistryFederal University of Rio de JaneiroRio de Janeiro 21941-909Brazil UnespNational Institute of Alternative Technologies for DetectionToxicological Assessment and Removal of Micropollutants and Radioactives(INCT-DATREM)AraraquaraSão Paulo 14800-060Brazil National Institute of MetrologyQuality and TechnologyInmetroAv.Nossa Senhora das Graças50XerémDuque de Caxias 25250-020Brazil 

出 版 物：《Journal of Analysis and Testing》 (分析检测（英文）)

年 卷 期：2023年第7卷第4期

页      面：425-434页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 09[农学] 0903[农学-农业资源与环境] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：the Coordenacao de Aperfeicoamento de Pessoal de Nível Superior(CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq) Fundacao de Amparo à Pesquisa do Estado do Rio de Janeiro(FAPERJ)(Cincotto Proc.E-26/202.696/2019,Proc.E-26/010.002267/2019 and E-26/210.304/2022)for the financial support 

主　　题：Glyphosate Electrochemical sensor Carbon black Niobium nanoparticles 

摘      要：Glyphosate is a herbicide that has been widely used worldwide and is used in agricultural areas to control weeds and unwanted *** sensors developed from different nanomaterials have high efficiency,excellent cost-benefit,and fast analysis time for detecting traces of environmental *** study aimed to produce an electrochemical sensor with disposable screen-printed electrodes based on carbon black modified with niobium nanoparticles to determine glyphosate in aqueous *** morphology,structure and electrochemical performance of the sensor were characterized by scanning electron microscopy,energy-dispersive X-ray spectroscopy,X-ray diffraction and cyclic *** pulse voltammetry in BR buffer solution at pH 5.0 allowed the generation of a method to quantify glyphosate concentration in a linear range of 5.90-172.30μmol/L(1.00-29.13μg/mL),with a limit of detection calculated at 3.07μmol/L(0.52μg/mL).The method efficiently quantified glyphosate in real water samples and showed no interference from K^(+),Na^(+),Ca^(2+),Mg^(2+)ions or thiamethoxam,imidacloprid and carbendazim pesticides.