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dc.contributor.author
Escudero, Luis Ariel  
dc.contributor.author
Cerutti, Estela Soledad  
dc.contributor.author
Olsina, Roberto Antonio  
dc.contributor.author
Salonia, José Antonio  
dc.contributor.author
Gasquez, José Antonio  
dc.date.available
2019-12-23T22:05:29Z  
dc.date.issued
2010-11  
dc.identifier.citation
Escudero, Luis Ariel; Cerutti, Estela Soledad; Olsina, Roberto Antonio; Salonia, José Antonio; Gasquez, José Antonio; Factorial design optimization of experimental variables in the on-line separation/preconcentration of copper in water samples using solid phase extraction and ICP-OES determination; Elsevier Science; Journal of Hazardous Materials; 183; 1-3; 11-2010; 218-223  
dc.identifier.issn
0304-3894  
dc.identifier.uri
http://hdl.handle.net/11336/92858  
dc.description.abstract
An on-line preconcentration procedure using solid phase extraction (SPE) for the determination of copper in different water samples by inductively coupled plasma optical emission spectrometry (ICP-OES) is proposed. The copper was retained on a minicolumn filled with ethyl vinyl acetate (EVA) at pH 8.0 without using any complexing reagent. The experimental optimization step was performed using a two-level full factorial design. The results showed that pH, sample loading flow rate, and their interaction (at the tested levels) were statistically significant. In order to determine the best conditions for preconcentration and determination of copper, a final optimization of the significant factors was carried out using a central composite design (CCD). The calibration graph was linear with a regression coefficient of 0.995 at levels near the detection limit up to at least 300μgL-1. An enrichment factor (EF) of 54 with a preconcentration time of 187.5s was obtained. The limit of detection (3σ) was 0.26μgL-1. The sampling frequency for the developed methodology was about 15samples/h. The relative standard deviation (RSD) for six replicates containing 50μgL-1 of copper was 3.76%. The methodology was successfully applied to the determination of Cu in tap, mineral, river water samples, and in a certified VKI standard reference material.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
COPPER DETERMINATION  
dc.subject
ETHYL VINYL ACETATE  
dc.subject
ICP-OES  
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ON-LINE PRECONCENTRATION  
dc.subject.classification
Química Analítica  
dc.subject.classification
Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Factorial design optimization of experimental variables in the on-line separation/preconcentration of copper in water samples using solid phase extraction and ICP-OES determination  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-10-10T19:31:59Z  
dc.journal.volume
183  
dc.journal.number
1-3  
dc.journal.pagination
218-223  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Escudero, Luis Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina  
dc.description.fil
Fil: Cerutti, Estela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina  
dc.description.fil
Fil: Olsina, Roberto Antonio. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina  
dc.description.fil
Fil: Salonia, José Antonio. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina  
dc.description.fil
Fil: Gasquez, José Antonio. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Química. Área de Química Analítica; Argentina  
dc.journal.title
Journal of Hazardous Materials  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jhazmat.2010.07.014  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0304389410008988