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Abstract
Argentina, together with the USA and Brazil, produces approximately 80% of the total worldwide glyphosate loadings. The development of a simplified ultra-high performance liquid chromatographic tandem mass spectrometric method (UHPLC-MS/MS) for the determination of glyphosate, aminomethylphosphonic acid (AMPA) and glufosinate in water is described, including studies of several alternatives of 9-fluorenylmethylchloroformate (FMOC-Cl) derivatization and [ver mas...]
dc.contributor.authorDemonte, Luisina Delma
dc.contributor.authorMichlig, Nicolás
dc.contributor.authorGaggiotti, Monica Del Carmen
dc.contributor.authorAdam, Claudia Guadalupe
dc.contributor.authorBeldoménico, Horacio Ramón
dc.contributor.authorRepetti, María Rosa
dc.date.accessioned2018-07-30T14:16:12Z
dc.date.available2018-07-30T14:16:12Z
dc.date.issued2018-07
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.otherhttps://doi.org/10.1016/j.scitotenv.2018.06.340
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0048969718324161
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2915
dc.description.abstractArgentina, together with the USA and Brazil, produces approximately 80% of the total worldwide glyphosate loadings. The development of a simplified ultra-high performance liquid chromatographic tandem mass spectrometric method (UHPLC-MS/MS) for the determination of glyphosate, aminomethylphosphonic acid (AMPA) and glufosinate in water is described, including studies of several alternatives of 9-fluorenylmethylchloroformate (FMOC-Cl) derivatization and pretreatment steps. The proposed method includes acidification and neutralization of a low sample volume (3 mL), 2 hours derivatization step, cleanup with dichloromethane, followed by reverse phase UHPLC-MS/MS determination of the analytes. Figures of merit were satisfactory in terms of linearity, selectivity, accuracy and intermediate precision (%REC 70–105% with RSD < 15%). Limits of quantification (LOQ) were suitable for monitoring purposes (0.6, 0.2, 0.1 μg/L for glyphosate, AMPA and glufosinate respectively). The validated methodology was applied for the analysis of livestock wells waters from 40 dairy farms located in the central region of Argentina. Glyphosate and AMPA were quantified in 15% and 53% of the analyzed samples with concentrations ranging from 0.6–11.3 μg/L and 0.2–6.5 μg/L respectively. Greater concentrations of glyphosate were also verified in waters from open-reservoir tanks, which are directly exposed to the farm environment. In these cases glyphosate and AMPA occurrence increased, being quantified in the 33% and 61% of the samples with values ranging 0.6–21.2 μg/L and 0.2–4.2 μg/L respectively. Also in this case glufosinate was found in 52% samples at <LOQ levels and was quantified in one sample at 0.1 μg/L. This new information constitutes an important contribution to authorities and scientists for further research, control and risk analysis purposes.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceScience of The Total Environment 645 : 34-43 (December 2018) In Progresses_AR
dc.subjectGranjas Lecherases_AR
dc.subjectDairy Farmseng
dc.subjectAguaes_AR
dc.subjectWatereng
dc.subjectGlifosatoes_AR
dc.subjectGlyphosateeng
dc.subjectGlufosinatoes_AR
dc.subjectGlufosinateeng
dc.subjectExperimentaciónes_AR
dc.subjectExperimentationeng
dc.subject.otherArgentinaes_AR
dc.subject.otherTamboses_AR
dc.titleDetermination of glyphosate, AMPA and glufosinate in dairy farm water from Argentina using a simplified UHPLC-MS/MS methodes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Rafaelaes_AR
dc.description.filFil: Demonte, Luisina Delma. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos y Contaminantes Químicos (PRINARC); Argentinaes_AR
dc.description.filFil: Michlig, Nicolás. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos y Contaminantes Químicos (PRINARC); Argentinaes_AR
dc.description.filFil: Gaggiotti, Monica Del Carmen. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentinaes_AR
dc.description.filFil: Adam, Claudia Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. IQAL; Argentinaes_AR
dc.description.filFil: Beldoménico, Horacio Ramón. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos y Contaminantes Químicos (PRINARC); Argentinaes_AR
dc.description.filFil: Repetti, María Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos y Contaminantes Químicos (PRINARC); Argentinaes_AR
dc.subtypecientifico


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