Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration
Main Author: | |
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Publication Date: | 2019 |
Other Authors: | , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.21577/0103-5053.20190050 http://hdl.handle.net/11449/189526 |
Summary: | The present work aims at studying the preconcentration of Cu2+ ions by solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide as adsorbent material. This methodology consists of the affinity of the analyte for the adsorbent material and its subsequent elution with the least amount of solvent. Subsequently, the aqueous phase containing the extracted analyte was collected and analyzed by square wave anodic stripping voltammetry (SW-ASV). For the applied solid phase extraction (SPE) methodology, a complete factorial design was carried out with 3 variables at 2 levels (pH, elution flow rate and analyte concentration) to optimize the extraction conditions. The results showed that at pH 9, the SiO2/Al2O3/TiO2 oxide presents excellent Cu2+ adsorption capacity with recovery values between 81.0 and 104% for this pH range. The limit of detection (LOD) and limit of quantification (LOQ) values were determined to be 1.71 and 5.64 μg L-1, respectively. The study of recovery for SPE method revealed results of 102 and 103%. |
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Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentrationCachaçaCopper ionsPreconcentrationSolid phase extractionSquare wave anodic stripping voltammetryTernary oxideThe present work aims at studying the preconcentration of Cu2+ ions by solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide as adsorbent material. This methodology consists of the affinity of the analyte for the adsorbent material and its subsequent elution with the least amount of solvent. Subsequently, the aqueous phase containing the extracted analyte was collected and analyzed by square wave anodic stripping voltammetry (SW-ASV). For the applied solid phase extraction (SPE) methodology, a complete factorial design was carried out with 3 variables at 2 levels (pH, elution flow rate and analyte concentration) to optimize the extraction conditions. The results showed that at pH 9, the SiO2/Al2O3/TiO2 oxide presents excellent Cu2+ adsorption capacity with recovery values between 81.0 and 104% for this pH range. The limit of detection (LOD) and limit of quantification (LOQ) values were determined to be 1.71 and 5.64 μg L-1, respectively. The study of recovery for SPE method revealed results of 102 and 103%.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto de Química Universidade Federal do Rio de Janeiro Cidade UniversitáriaInstituto Nacional de Tecnologias Alternativas para Detecção Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos (INCT-DATREM) Instituto de Química Universidade Estadual Paulista (Unesp), CP 355Instituto Nacional de Tecnologias Alternativas para Detecção Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos (INCT-DATREM) Instituto de Química Universidade Estadual Paulista (Unesp), CP 355Universidade Federal do Rio de Janeiro (UFRJ)Universidade Estadual Paulista (Unesp)Pinheiro, Evelyn F.Rodrigues, José Guilherme A. [UNESP]Honório, Gláucio G.da Cunha, Jéssica N.de Paula, Carlos Eduardo R.de Andrade, Débora F.Ribeiro, Emerson S. [UNESP]D’Elia, Eliane2019-10-06T16:43:34Z2019-10-06T16:43:34Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1534-1540application/pdfhttp://dx.doi.org/10.21577/0103-5053.20190050Journal of the Brazilian Chemical Society, v. 30, n. 7, p. 1534-1540, 2019.1678-47900103-5053http://hdl.handle.net/11449/18952610.21577/0103-5053.20190050S0103-505320190007015342-s2.0-85070906948S0103-50532019000701534.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/openAccess2023-10-19T06:08:10Zoai:repositorio.unesp.br:11449/189526Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-19T06:08:10Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
title |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
spellingShingle |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration Pinheiro, Evelyn F. Cachaça Copper ions Preconcentration Solid phase extraction Square wave anodic stripping voltammetry Ternary oxide |
title_short |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
title_full |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
title_fullStr |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
title_full_unstemmed |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
title_sort |
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration |
author |
Pinheiro, Evelyn F. |
author_facet |
Pinheiro, Evelyn F. Rodrigues, José Guilherme A. [UNESP] Honório, Gláucio G. da Cunha, Jéssica N. de Paula, Carlos Eduardo R. de Andrade, Débora F. Ribeiro, Emerson S. [UNESP] D’Elia, Eliane |
author_role |
author |
author2 |
Rodrigues, José Guilherme A. [UNESP] Honório, Gláucio G. da Cunha, Jéssica N. de Paula, Carlos Eduardo R. de Andrade, Débora F. Ribeiro, Emerson S. [UNESP] D’Elia, Eliane |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Rio de Janeiro (UFRJ) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pinheiro, Evelyn F. Rodrigues, José Guilherme A. [UNESP] Honório, Gláucio G. da Cunha, Jéssica N. de Paula, Carlos Eduardo R. de Andrade, Débora F. Ribeiro, Emerson S. [UNESP] D’Elia, Eliane |
dc.subject.por.fl_str_mv |
Cachaça Copper ions Preconcentration Solid phase extraction Square wave anodic stripping voltammetry Ternary oxide |
topic |
Cachaça Copper ions Preconcentration Solid phase extraction Square wave anodic stripping voltammetry Ternary oxide |
description |
The present work aims at studying the preconcentration of Cu2+ ions by solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide as adsorbent material. This methodology consists of the affinity of the analyte for the adsorbent material and its subsequent elution with the least amount of solvent. Subsequently, the aqueous phase containing the extracted analyte was collected and analyzed by square wave anodic stripping voltammetry (SW-ASV). For the applied solid phase extraction (SPE) methodology, a complete factorial design was carried out with 3 variables at 2 levels (pH, elution flow rate and analyte concentration) to optimize the extraction conditions. The results showed that at pH 9, the SiO2/Al2O3/TiO2 oxide presents excellent Cu2+ adsorption capacity with recovery values between 81.0 and 104% for this pH range. The limit of detection (LOD) and limit of quantification (LOQ) values were determined to be 1.71 and 5.64 μg L-1, respectively. The study of recovery for SPE method revealed results of 102 and 103%. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:43:34Z 2019-10-06T16:43:34Z 2019-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.21577/0103-5053.20190050 Journal of the Brazilian Chemical Society, v. 30, n. 7, p. 1534-1540, 2019. 1678-4790 0103-5053 http://hdl.handle.net/11449/189526 10.21577/0103-5053.20190050 S0103-50532019000701534 2-s2.0-85070906948 S0103-50532019000701534.pdf |
url |
http://dx.doi.org/10.21577/0103-5053.20190050 http://hdl.handle.net/11449/189526 |
identifier_str_mv |
Journal of the Brazilian Chemical Society, v. 30, n. 7, p. 1534-1540, 2019. 1678-4790 0103-5053 10.21577/0103-5053.20190050 S0103-50532019000701534 2-s2.0-85070906948 S0103-50532019000701534.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Chemical Society |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1534-1540 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797789445255069696 |