Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot

Detalhes bibliográficos
Autor(a) principal: Sá, Ívero P.
Data de Publicação: 2021
Outros Autores: Almeida, Ohana N., Lima, Daniel De C., da Silva, Erik G.P., Santos, Luana N., Luzardo, Francisco H.M., Velasco, Fermin G., Gonzalez, Mário H. [UNESP], Amorim, Fábio A.C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.sab.2021.106253
http://hdl.handle.net/11449/221984
Resumo: This work describes an analytical procedure to determination of trace amount of lanthanide and actinide chemistry elements (LAEs) in water samples by energy dispersive x-ray fluorescence spectrometry (EDXRF) with the prepare of the samples using simultaneous preconcentration procedure based on the dispersive liquid-liquid microextraction (DLLME). Critical study of the analytical procedure occurred the following way: ions of Eu, Er, Ho, Th, U and Yb presents in 5.0 mL of aqueous sample have been complexed with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP) in a mixture contained solvents (disperser and extractant). After centrifugation, 30 μL of the sedimented organic phase has been removed and deposited on membrane disk and submitted to EDXRF analysis. The optimization step was performed by: i) screening factor with mixture design for the disperser solvent (acetone, acetonitrile and ethanol) and extractant solvent (carbon tetrachloride, trichlorethylene and 1,2-dichloroethane); ii) Box-Behnken design for the independents variables: pH, Br-PADAP concentration, volume of disperser solvent and volume of extractant solvent. The optimized conditions were: 500 μL of disperser solvent (ethanol), 60 μL extractant solvent (carbon tetrachloride and trichlorethylene, 1: 1 ratio), Br-PADAP 1.8 × 10−5 mol L−1 and pH 8.0. In these conditions, the procedure allows the determination of Eu, Ho, Er, Yb, Th and U with quantification limits of 10.5; 8.6; 4.3; 7.0; 6.6 and 1.1 μg L−1, respectively; preconcentration factor between 18 and 74, and precision (RSD%) below that 6%. Salting out effect, presence of other ions, and additions/recoveries of analytes in real samples was verified and the recovery values were between of 90 to 107%. Analytical method has been applied in waters samples and groundwater from uranium mining region.
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spelling Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spotActinidesDried spotLanthanidesLiquid phase microextractionMultivariate optimizationWater analysisX-ray fluorescence spectrometryThis work describes an analytical procedure to determination of trace amount of lanthanide and actinide chemistry elements (LAEs) in water samples by energy dispersive x-ray fluorescence spectrometry (EDXRF) with the prepare of the samples using simultaneous preconcentration procedure based on the dispersive liquid-liquid microextraction (DLLME). Critical study of the analytical procedure occurred the following way: ions of Eu, Er, Ho, Th, U and Yb presents in 5.0 mL of aqueous sample have been complexed with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP) in a mixture contained solvents (disperser and extractant). After centrifugation, 30 μL of the sedimented organic phase has been removed and deposited on membrane disk and submitted to EDXRF analysis. The optimization step was performed by: i) screening factor with mixture design for the disperser solvent (acetone, acetonitrile and ethanol) and extractant solvent (carbon tetrachloride, trichlorethylene and 1,2-dichloroethane); ii) Box-Behnken design for the independents variables: pH, Br-PADAP concentration, volume of disperser solvent and volume of extractant solvent. The optimized conditions were: 500 μL of disperser solvent (ethanol), 60 μL extractant solvent (carbon tetrachloride and trichlorethylene, 1: 1 ratio), Br-PADAP 1.8 × 10−5 mol L−1 and pH 8.0. In these conditions, the procedure allows the determination of Eu, Ho, Er, Yb, Th and U with quantification limits of 10.5; 8.6; 4.3; 7.0; 6.6 and 1.1 μg L−1, respectively; preconcentration factor between 18 and 74, and precision (RSD%) below that 6%. Salting out effect, presence of other ions, and additions/recoveries of analytes in real samples was verified and the recovery values were between of 90 to 107%. Analytical method has been applied in waters samples and groundwater from uranium mining region.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado da BahiaFinanciadora de Estudos e ProjetosDepartment of Exact and Technological Sciences State University of Santa Cruz (UESC)Group of Applied Instrumental Analysis Department of Chemistry Federal University of São CarlosNational Institute of Energy and Environment Science and Technology Federal University of BahiaDepartment of Chemistry and Environmental Sciences IBILICE Paulista State University (UNESP), P.O. Box 136Department of Chemistry and Environmental Sciences IBILICE Paulista State University (UNESP), P.O. Box 136State University of Santa Cruz (UESC)Universidade Federal de São Carlos (UFSCar)Universidade Federal da Bahia (UFBA)Universidade Estadual Paulista (UNESP)Sá, Ívero P.Almeida, Ohana N.Lima, Daniel De C.da Silva, Erik G.P.Santos, Luana N.Luzardo, Francisco H.M.Velasco, Fermin G.Gonzalez, Mário H. [UNESP]Amorim, Fábio A.C.2022-04-28T19:41:39Z2022-04-28T19:41:39Z2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.sab.2021.106253Spectrochimica Acta - Part B Atomic Spectroscopy, v. 182.0584-8547http://hdl.handle.net/11449/22198410.1016/j.sab.2021.1062532-s2.0-85110535021Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSpectrochimica Acta - Part B Atomic Spectroscopyinfo:eu-repo/semantics/openAccess2022-04-28T19:41:39Zoai:repositorio.unesp.br:11449/221984Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:41:39Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
title Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
spellingShingle Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
Sá, Ívero P.
Actinides
Dried spot
Lanthanides
Liquid phase microextraction
Multivariate optimization
Water analysis
X-ray fluorescence spectrometry
title_short Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
title_full Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
title_fullStr Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
title_full_unstemmed Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
title_sort Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
author Sá, Ívero P.
author_facet Sá, Ívero P.
Almeida, Ohana N.
Lima, Daniel De C.
da Silva, Erik G.P.
Santos, Luana N.
Luzardo, Francisco H.M.
Velasco, Fermin G.
Gonzalez, Mário H. [UNESP]
Amorim, Fábio A.C.
author_role author
author2 Almeida, Ohana N.
Lima, Daniel De C.
da Silva, Erik G.P.
Santos, Luana N.
Luzardo, Francisco H.M.
Velasco, Fermin G.
Gonzalez, Mário H. [UNESP]
Amorim, Fábio A.C.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv State University of Santa Cruz (UESC)
Universidade Federal de São Carlos (UFSCar)
Universidade Federal da Bahia (UFBA)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Sá, Ívero P.
Almeida, Ohana N.
Lima, Daniel De C.
da Silva, Erik G.P.
Santos, Luana N.
Luzardo, Francisco H.M.
Velasco, Fermin G.
Gonzalez, Mário H. [UNESP]
Amorim, Fábio A.C.
dc.subject.por.fl_str_mv Actinides
Dried spot
Lanthanides
Liquid phase microextraction
Multivariate optimization
Water analysis
X-ray fluorescence spectrometry
topic Actinides
Dried spot
Lanthanides
Liquid phase microextraction
Multivariate optimization
Water analysis
X-ray fluorescence spectrometry
description This work describes an analytical procedure to determination of trace amount of lanthanide and actinide chemistry elements (LAEs) in water samples by energy dispersive x-ray fluorescence spectrometry (EDXRF) with the prepare of the samples using simultaneous preconcentration procedure based on the dispersive liquid-liquid microextraction (DLLME). Critical study of the analytical procedure occurred the following way: ions of Eu, Er, Ho, Th, U and Yb presents in 5.0 mL of aqueous sample have been complexed with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (Br-PADAP) in a mixture contained solvents (disperser and extractant). After centrifugation, 30 μL of the sedimented organic phase has been removed and deposited on membrane disk and submitted to EDXRF analysis. The optimization step was performed by: i) screening factor with mixture design for the disperser solvent (acetone, acetonitrile and ethanol) and extractant solvent (carbon tetrachloride, trichlorethylene and 1,2-dichloroethane); ii) Box-Behnken design for the independents variables: pH, Br-PADAP concentration, volume of disperser solvent and volume of extractant solvent. The optimized conditions were: 500 μL of disperser solvent (ethanol), 60 μL extractant solvent (carbon tetrachloride and trichlorethylene, 1: 1 ratio), Br-PADAP 1.8 × 10−5 mol L−1 and pH 8.0. In these conditions, the procedure allows the determination of Eu, Ho, Er, Yb, Th and U with quantification limits of 10.5; 8.6; 4.3; 7.0; 6.6 and 1.1 μg L−1, respectively; preconcentration factor between 18 and 74, and precision (RSD%) below that 6%. Salting out effect, presence of other ions, and additions/recoveries of analytes in real samples was verified and the recovery values were between of 90 to 107%. Analytical method has been applied in waters samples and groundwater from uranium mining region.
publishDate 2021
dc.date.none.fl_str_mv 2021-08-01
2022-04-28T19:41:39Z
2022-04-28T19:41:39Z
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/10.1016/j.sab.2021.106253
Spectrochimica Acta - Part B Atomic Spectroscopy, v. 182.
0584-8547
http://hdl.handle.net/11449/221984
10.1016/j.sab.2021.106253
2-s2.0-85110535021
url http://dx.doi.org/10.1016/j.sab.2021.106253
http://hdl.handle.net/11449/221984
identifier_str_mv Spectrochimica Acta - Part B Atomic Spectroscopy, v. 182.
0584-8547
10.1016/j.sab.2021.106253
2-s2.0-85110535021
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Spectrochimica Acta - Part B Atomic Spectroscopy
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
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