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dc.contributor.author
Mammana, Sabrina Belén  
dc.contributor.author
Berton, Paula  
dc.contributor.author
Camargo, Alejandra Beatriz  
dc.contributor.author
Lascalea, Gustavo Enrique  
dc.contributor.author
Altamirano, Jorgelina Cecilia  
dc.date.available
2017-09-07T17:04:48Z  
dc.date.issued
2017-03-20  
dc.identifier.citation
Mammana, Sabrina Belén; Berton, Paula; Camargo, Alejandra Beatriz; Lascalea, Gustavo Enrique; Altamirano, Jorgelina Cecilia; Coprecipitation-assisted coacervative extraction coupled to high-performance liquid chromatography: An approach for determining organophosphorus pesticides in water samples; Wiley VCH Verlag; Electrophoresis; 38; 9-10; 20-3-2017; 1334-1343  
dc.identifier.issn
0173-0835  
dc.identifier.uri
http://hdl.handle.net/11336/23770  
dc.description.abstract
An analytical methodology based on coprecipitation assisted coacervative extraction cop-CAE) coupled to High Performance Liquid Chromatography and UV-visible detection was developed for analysis of five organophosphorus pesticides (OPPs), including fenitrothion, guthion, parathion, methidathion and chlorpyrifos, in water samples. It is the first time that cop-CAE was used for extraction and preconcentration of OPPs from water for further determination by HPLC. The effects of relevant physic-chemical variables on the analytical response of each OPP (pH, precipitant concentration, surfactant concentration, stirring time, equilibration time and temperature) were studied and optimized, as well as the working conditions for coupling cop-CAE to HPLC-UV. Under optimized conditions, the resulting methodology was as follows: an aliquot of 10 mL of water sample was placed into a 15 mL centrifuge tube where 0.5 mL of sodium citrate 0.1 M, pH 4, 0.08 mL of aluminum sulfate 0.1 mM and 0.7 mL of SDS 0.1 mM were added and homogenized for 8 min using a vortex stirrer to induce the formation of the admicelles. The resulting cloudy solution was kept at 25 °C for 5 min for equilibration. After centrifugation the coacervate rich-phase and supernatant were separated. The resulting supernatant was removed and discarded. A 0.7 mL aliquot of the coacervate rich-phase was transferred to 2 mL vial and dissolved with 300 µL of methanol. An aliquot of 20 µL of the resulting homogeneous solution was injected into the HPLC-UV for analysis. The method detection limits for fenitrothion, parathion, guthion, methidathion and chlorpyrifos under optimized conditions was 83, 35, 35, 57 and 12 ng L-1, respectively. The RSD (%) for the studied analytes were < 3% (n=3). Recovery values ranged from 78 to 93%. The proposed analytical methodology was successfully applied for the analysis of five OPPs in different water sample of Mendoza city.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Wiley VCH Verlag  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Organophosphorus Pesticides  
dc.subject
Cop-Cae  
dc.subject
Water Samples  
dc.subject
Hplc-Uv.  
dc.subject
Coprecipitation-Assisted Coacervative Extraction / Green Chemistry / Hplc / Organophosphorus Pesticides / Water Samples  
dc.subject
Coacervative Extraction  
dc.subject
Green Chemistry  
dc.subject
Hplc  
dc.subject.classification
Otras Ciencias Químicas  
dc.subject.classification
Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Coprecipitation-assisted coacervative extraction coupled to high-performance liquid chromatography: An approach for determining organophosphorus pesticides in water samples  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-07-13T17:54:21Z  
dc.journal.volume
38  
dc.journal.number
9-10  
dc.journal.pagination
1334-1343  
dc.journal.pais
Alemania  
dc.journal.ciudad
Weinheim  
dc.description.fil
Fil: Mammana, Sabrina Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina  
dc.description.fil
Fil: Berton, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina  
dc.description.fil
Fil: Camargo, Alejandra Beatriz. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Laboratorio de Cromatografía para Agroalimentos ; Argentina  
dc.description.fil
Fil: Lascalea, Gustavo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina  
dc.description.fil
Fil: Altamirano, Jorgelina Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina  
dc.journal.title
Electrophoresis  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/elps.201600335/abstract  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/elps.201600335