Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta
Ano de defesa: | 2007 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Química
|
Departamento: |
Química
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/4146 |
Resumo: | The simultaneous determination of Al(III) and Fe(III) in post-hemodialysis fluids was investigated by the Adsorptive stripping voltammetry (AdSV) of solochrome violet (SVRS) metal complexes. The analytes build electrochemically active complexes with SVRS reagent in acetate buffered medium at pH 4.6. The adsorption of the complexes on the mercury electrode (HMDE) was investigated by out of phase altenating current voltammetry in presence of the main matrix interfering species, urea, creatinine, glucose, uric and oxalic acids. The competitive action of the matrix relatively to Al(III) and Fe(III) SVRS complexes formation apart of the HMDE electrode was assessed by molecular spectrometry. The interference rank uric acid > urea = oxalic acid > creatinine was stablished. Sample digestion by UV irradiation was investigated to overcome the matrix interference on the electrodic reaction and competition toward the analytes as well. Two hours digestion time at 90 °C in H2O2 acidic solution was enough to assay by AdSV Al(III) and Fe(III) as SVRS complexes in 1:1 diluted real post-hemodialysis samples. The proposed method was valid for samples containing or not Desferrioxamine B. It was tested to assay Al(III) and Fe(III) in 36 real post-hemodialysis samples obtained from the university hospital. Detection limits of 1.4 and 1.8 μg L-1 were calculated for Al(III) and Fe(III), respectively. Recoveries ranging from 88.1 to 106.7% were obtained from spiking experiments. |
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2017-05-182017-05-182007-10-19DEL-FABRO, Luciana Didonet. Voltammetric determination of Al(III) and Fe(III) as solochrome violet RS complexes in post-hemodialysis fluids after UV sample digestion. 2007. 125 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2007.http://repositorio.ufsm.br/handle/1/4146The simultaneous determination of Al(III) and Fe(III) in post-hemodialysis fluids was investigated by the Adsorptive stripping voltammetry (AdSV) of solochrome violet (SVRS) metal complexes. The analytes build electrochemically active complexes with SVRS reagent in acetate buffered medium at pH 4.6. The adsorption of the complexes on the mercury electrode (HMDE) was investigated by out of phase altenating current voltammetry in presence of the main matrix interfering species, urea, creatinine, glucose, uric and oxalic acids. The competitive action of the matrix relatively to Al(III) and Fe(III) SVRS complexes formation apart of the HMDE electrode was assessed by molecular spectrometry. The interference rank uric acid > urea = oxalic acid > creatinine was stablished. Sample digestion by UV irradiation was investigated to overcome the matrix interference on the electrodic reaction and competition toward the analytes as well. Two hours digestion time at 90 °C in H2O2 acidic solution was enough to assay by AdSV Al(III) and Fe(III) as SVRS complexes in 1:1 diluted real post-hemodialysis samples. The proposed method was valid for samples containing or not Desferrioxamine B. It was tested to assay Al(III) and Fe(III) in 36 real post-hemodialysis samples obtained from the university hospital. Detection limits of 1.4 and 1.8 μg L-1 were calculated for Al(III) and Fe(III), respectively. Recoveries ranging from 88.1 to 106.7% were obtained from spiking experiments.A determinação simultânea de Al(III) e Fe(III) em fluidos pós-hemodialise foi investigada por voltametria adsortiva (AdSV) usando como agente complexante o violeta de solocromo RS (SVRS). Os analitos formam complexos eletroativos com o SVRS em pH 4.6. A adsorção dos complexos no eletrodo de mercúrio (HMDE) foi investigada através da voltametria de corrente alternada, na presença dos principais interferentes presentes nos fluidos pós-hemodialise: uréia, creatinina, ácido úrico e ácido oxálico. Para avaliar a possibilidade de formação de complexos entre os compostos orgânicos presentes no fluido pós-hemodiálise com o Al(III) e o Fe(III), investigou-se o perfil dos espectros de absorção molecular dos complexos Al(III)- SVRS e Fe(III)-SVRS na presença das espécies interferentes. O ordem de interferência das espécies orgânicas foi: ácido úrico > uréia = ácido oxálico > creatinina. A digestão das amostras por irradiação UV foi investigada para eliminar a interferência da matriz. A irradiação UV de amostras diluídas (1:1) durante 2 horas, com adição de HCl concentrado (2,4.10-2 mol L-1) e de H2O2 30% (6,86.10-3 mol L-1) no início do processo, foi escolhida como a melhor condição para a digestão da amostra. O método proposto foi validado para amostras contendo ou não Desferal. Foram coletadas amostras de fluido pós-hemodiálise de 36 pacientes renais. Os limites de detecção de 1,4 μg L-1, para o Al(III) e 1,8 μg L-1 para o Fe(III) foram calculados. As recuperações obtidas ficaram entre 88,1 e 106,7%.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em QuímicaUFSMBRQuímicaVoltametria adsortivaFluidos pós-hemodiáliseAlumínioFerroDigestão UVAdsorptive voltammetryPost-hemodialysis fluidsAluminumIronUV digestionCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICADeterminação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioletaVoltammetric determination of Al(III) and Fe(III) as solochrome violet RS complexes in post-hemodialysis fluids after UV sample digestioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisNascimento, Paulo Cícero dohttp://lattes.cnpq.br/7151513617218161Carvalho, Leandro Machado dehttp://lattes.cnpq.br/6652387343920028Rohlfes, Ana Lúcia Beckerhttp://lattes.cnpq.br/0776920117862321Rosa, Marcelo Barcellos dahttp://lattes.cnpq.br/0308293154958870Azambuja, Denise Schermannhttp://lattes.cnpq.br/8966789984120067http://lattes.cnpq.br/9661552066674490Del-fabro, Luciana Didonet1006000000004003003005003003003002042fb16-c273-4428-8d59-fe233e346cbb39197e5e-e359-4b3c-9e44-9a4fe731e97d19c1326f-8b95-43f2-9615-b84a964868de01108c96-a7f1-4fa8-ad31-92dd16aee9176b7df45a-693c-426f-849a-d3d7a08bd80f8c5f3ab2-8926-445c-8215-ca9fdf050056info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALLUCIANADELFABRO.pdfTese de Doutoradoapplication/pdf853743http://repositorio.ufsm.br/bitstream/1/4146/1/LUCIANADELFABRO.pdf97261c492cfe73ad8c319abb98c3cd61MD51TEXTLUCIANADELFABRO.pdf.txtLUCIANADELFABRO.pdf.txtExtracted texttext/plain201323http://repositorio.ufsm.br/bitstream/1/4146/2/LUCIANADELFABRO.pdf.txt5c763913412002d74e31324a2142a5b8MD52THUMBNAILLUCIANADELFABRO.pdf.jpgLUCIANADELFABRO.pdf.jpgIM Thumbnailimage/jpeg5102http://repositorio.ufsm.br/bitstream/1/4146/3/LUCIANADELFABRO.pdf.jpge742de6a910ba6f0bddcce5e1d903ea1MD531/41462023-01-05 10:50:49.537oai:repositorio.ufsm.br:1/4146Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132023-01-05T13:50:49Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
dc.title.alternative.eng.fl_str_mv |
Voltammetric determination of Al(III) and Fe(III) as solochrome violet RS complexes in post-hemodialysis fluids after UV sample digestion |
title |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
spellingShingle |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta Del-fabro, Luciana Didonet Voltametria adsortiva Fluidos pós-hemodiálise Alumínio Ferro Digestão UV Adsorptive voltammetry Post-hemodialysis fluids Aluminum Iron UV digestion CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
title_full |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
title_fullStr |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
title_full_unstemmed |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
title_sort |
Determinação de alumínio e ferro em fluidos pós-hemodiálise empregando voltametria e decomposição de amostras com radiação ultravioleta |
author |
Del-fabro, Luciana Didonet |
author_facet |
Del-fabro, Luciana Didonet |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Nascimento, Paulo Cícero do |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7151513617218161 |
dc.contributor.referee1.fl_str_mv |
Carvalho, Leandro Machado de |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/6652387343920028 |
dc.contributor.referee2.fl_str_mv |
Rohlfes, Ana Lúcia Becker |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0776920117862321 |
dc.contributor.referee3.fl_str_mv |
Rosa, Marcelo Barcellos da |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/0308293154958870 |
dc.contributor.referee4.fl_str_mv |
Azambuja, Denise Schermann |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/8966789984120067 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9661552066674490 |
dc.contributor.author.fl_str_mv |
Del-fabro, Luciana Didonet |
contributor_str_mv |
Nascimento, Paulo Cícero do Carvalho, Leandro Machado de Rohlfes, Ana Lúcia Becker Rosa, Marcelo Barcellos da Azambuja, Denise Schermann |
dc.subject.por.fl_str_mv |
Voltametria adsortiva Fluidos pós-hemodiálise Alumínio Ferro Digestão UV |
topic |
Voltametria adsortiva Fluidos pós-hemodiálise Alumínio Ferro Digestão UV Adsorptive voltammetry Post-hemodialysis fluids Aluminum Iron UV digestion CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Adsorptive voltammetry Post-hemodialysis fluids Aluminum Iron UV digestion |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
The simultaneous determination of Al(III) and Fe(III) in post-hemodialysis fluids was investigated by the Adsorptive stripping voltammetry (AdSV) of solochrome violet (SVRS) metal complexes. The analytes build electrochemically active complexes with SVRS reagent in acetate buffered medium at pH 4.6. The adsorption of the complexes on the mercury electrode (HMDE) was investigated by out of phase altenating current voltammetry in presence of the main matrix interfering species, urea, creatinine, glucose, uric and oxalic acids. The competitive action of the matrix relatively to Al(III) and Fe(III) SVRS complexes formation apart of the HMDE electrode was assessed by molecular spectrometry. The interference rank uric acid > urea = oxalic acid > creatinine was stablished. Sample digestion by UV irradiation was investigated to overcome the matrix interference on the electrodic reaction and competition toward the analytes as well. Two hours digestion time at 90 °C in H2O2 acidic solution was enough to assay by AdSV Al(III) and Fe(III) as SVRS complexes in 1:1 diluted real post-hemodialysis samples. The proposed method was valid for samples containing or not Desferrioxamine B. It was tested to assay Al(III) and Fe(III) in 36 real post-hemodialysis samples obtained from the university hospital. Detection limits of 1.4 and 1.8 μg L-1 were calculated for Al(III) and Fe(III), respectively. Recoveries ranging from 88.1 to 106.7% were obtained from spiking experiments. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007-10-19 |
dc.date.accessioned.fl_str_mv |
2017-05-18 |
dc.date.available.fl_str_mv |
2017-05-18 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
DEL-FABRO, Luciana Didonet. Voltammetric determination of Al(III) and Fe(III) as solochrome violet RS complexes in post-hemodialysis fluids after UV sample digestion. 2007. 125 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2007. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/4146 |
identifier_str_mv |
DEL-FABRO, Luciana Didonet. Voltammetric determination of Al(III) and Fe(III) as solochrome violet RS complexes in post-hemodialysis fluids after UV sample digestion. 2007. 125 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2007. |
url |
http://repositorio.ufsm.br/handle/1/4146 |
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por |
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100600000000 |
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Universidade Federal de Santa Maria |
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Química |
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Universidade Federal de Santa Maria |
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