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Registros recuperados : 16 | |
1. | | MATTOSO, L. H. C.; FARIA, R. C.; PATERNO, L. G.; TAKEDA, H. H.; FATIBELLO FILHO, O. Study on the chemical stability of polyaniline layer-by-layer films by UV-VIS spectroscopy and cyclic voltammetry simultaneous measurements. In: ENCONTRO DA SBPMAT, 5.; BRAZILIAN MRS MEETING, 5TH., 2006, Florianópolis. Final program... Florianópolis: [s. n.], 2006. p. 132. 1CD-ROM. Biblioteca(s): Embrapa Instrumentação. |
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2. | | TAKEDA, H. H.; SILVA, T. A.; JANEGITZ, B. C.; VICENTINI, F. C.; MATTOSO, L. H. C.; FATIBELLO-FILHO, O. Electrochemical sensing of levodopa or carbidopa using a glassy carbon electrode modified with carbon nanotubes within a poly(allylamine hydrochloride) film. Analytical methods, [S. l.], v. 8, p. 1274-1280, 2016. Biblioteca(s): Embrapa Instrumentação. |
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3. | | TAKEDA, H. H.; PEREZ, B.; MERKOCI, A.; AMBROSI, A.; MATTOSO, L. H. C.; FARIA, R. C.; FATIBELLO FILHO, O. Evaluation of a biosensor for phenolic compounds based on a nanostructured conducting polymer [PTu61]. In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, ICSM, 2008, Porto de Galinhas. Book of Abstracts... [S. l.: s. n.], 2008. p. 225-226. Biblioteca(s): Embrapa Instrumentação. |
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4. | | SUAREZ, W. T.; PESSOA NETO, O. D.; FARIA, R. C.; FATIBELLO FILHO, O.; NOGUEIRA, A. R. de A.; ALONSO, J. Determinação espectrofotométrica de dipirona em um sistema FIA empregando um microssistema analítico construído com LTCC. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 15.; CONGRESSO IBEROAMERICANO DE QUÍMICA ANALÍTICA, 3., 2009, Salvador, BA. Anais... Salvador: SBQ: UFBA, 2009. Biblioteca(s): Embrapa Pecuária Sudeste. |
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5. | | COSTA, L. M.; GOUVEIA, S. T.; SILVA, F. V.; NOGUEIRA, A. R. de A.; FATIBELLO FILHO, O.; NOBREGA, J. A. Determinação de carbono residual por ICO-OES's com configurações axial e radial. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 11., Campinas, SP. Desafios da química analítica no século XXI. Anais.... Campinas: ENQA, 2001. p. EA-7. Biblioteca(s): Embrapa Pecuária Sudeste. |
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6. | | PESSOA NETO, O. D.; SUAREZ, W. T.; FARIA, R. C.; FATIBELLO-FILHO, O.; NOGUEIRA, A. R. de A.; ALONSO, J. Aplicação de um microchip construído com LTCC para a determinação espectrofotométrica de N-acetilcisteína e captopril em fármacos. In: ENCONTRO NACIONAL DE QUIMICA ANALITICA, 15., CONGRESSO IBEROAMERICANO DE QUIMICA ANALITICA, 3., 2009, Salvador:SBQ:BA:UFBA, 2009. Biblioteca(s): Embrapa Pecuária Sudeste. |
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8. | | GOUVEIA, S. T.; LOPES, G. S.; NOBREGA, J. A.; NOGUEIRA, A. R. de A.; FATIBELLO FILHO, O. Moagem criogênica e aquecimento por infra-vermelho como alternativas para o preparo de amostras. In: ENCONTRO NACIONAL DE QUIMICA ANALITICA, 10., 1999, Santa Maria, RS. Anais... Santa Maria: UFSM/SBQ, 1999. TA-3. Biblioteca(s): Embrapa Pecuária Sudeste. |
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11. | | NÓBREGA, J. A.; FATIBELLO FILHO, O.; COSTA, L. M.; LOMBARDI, M. C. C.; GOUVEIA, S. T.; NOGUEIRA, A. R. de A.; BARNES, R. M. Cryogenic grinding and infrared heating as alternatives for sample preparation. In: WINTER CONFERENCE ON PLASMA SPECTROCHEMISTRY, 2000, Fort Lauderdale, Florida. Fort Lauderdale: ICP Information Newsletter, 2000. p.308. Biblioteca(s): Embrapa Pecuária Sudeste. |
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12. | | SUAREZ, W. T.; PESSOA-NETO, O. D.; SANTOS, W. B. dos; FARIA, R. C.; FATIBELLO-FILHO, O.; NOGUEIRA, A. R. de A.; ALONSO, J. Desenvolvimento de sistema miniaturizado para a determinação de uréia em amostras de leite. In: JORNADA CIENTÍFICA-EMBRAPA SÃO CARLOS, 2009, São Carlos, SP. Anais... São Carlos, SP: Embrapa Pecuária Sudeste: Embrapa Instrumentação Agropecuária, 2009. p. 81. Biblioteca(s): Embrapa Pecuária Sudeste. |
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13. | | SUAREZ, W. T.; PESSOA NETO, O. D.; SANTOS, V. B. dos; NOGUEIRA, A. R. de A.; FARIA, R. C.; FATIBELLO FILHO, O.; PUYOL, M.; ALONSO, J. A compact miniaturized continuous flow system for the determination of urea content in milk. Analytical & Bioanalytical Chemistry, n. 398, p. 1525-1533, 2010 Biblioteca(s): Embrapa Pecuária Sudeste. |
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14. | | SUAREZ, W. T.; PESSOA NETO, O. D.; SANTOS, V. B. dos; NOGUEIRA, A. R. de A.; FARIA, R. C.; FATIBELLO-FILHO, O.; CHAMARRO, J. A. A compact miniaturized flow system based on low-temperature co-fired ceramic technology coupled to led mini-photometer for determination of dipyrone in pharmaceutical formulations. Journal Brazilian Chemical Society, v. 24, n. 5, p. 847-855, may 2013. Biblioteca(s): Embrapa Pecuária Sudeste. |
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15. | | SUAREZ, W. T.; PESSOA-NETO, O. D.; SANTOS, V. B. dos; FARIA, R. C.; FATIBELLO-FILHO, O.; NOGUEIRA, A. R. de A.; ALONSO, J. Sistema miniaturizado composto por um microssistema, reator em fase sólida e um minifotômetro aplicados para a determinação de uréia. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 15.; CONGRESSO IBEROAMERICANO DE QUÍMICA ANALÍTICA, 3., 2009, Salvador, BA. Anais... Salvador: SBQ: UFBA, 2009. Biblioteca(s): Embrapa Pecuária Sudeste. |
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16. | | VINCENTINI, F. C.; PESSOA NETO, O. DE; SANTOS, V. B. dos; SUAREZ, W. T.; ALONSO, J.; CAVALHEIRO, E. T. G.; NOGUEIRA, A. R. de A.; FATIBELLO FILHO, O.; FARIA, R. C. Desenvolvimento de um sistema em fluxo empregando um minifotômetro Lab-made e LTCC (Low Temperature Co-Fired Ceramics) na determinação de ácido L-Ascórbico. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 16., 2011, Campos de Jordão. Anais... Campos de Jordão: SBQ, 2011. Biblioteca(s): Embrapa Pecuária Sudeste. |
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Registros recuperados : 16 | |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
29/09/2014 |
Data da última atualização: |
08/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SANTOS, V. B. dos; FAVA, E. L.; PESSOA-NETO, O. D.; BIANCHI, S. R.; FARIA, R. C.; FATIBELLO-FILHO, O. |
Afiliação: |
Vagner Bezerra dos Santos, Universidade Federal de São Carlos; Elson Luiz Fava, Universidade Federal de São Carlos; Osmundo Dantas Pessoa-Neto, Universidade Federal de São Carlos; SILMARA ROSSANA BIANCHI, CNPS; Ronaldo Censi Faria, Universidade Federal de São Carlos; Orlando Fatibello-Filho, Universidade Federal de São Carlos. |
Título: |
A versatile and robust electrochemical flow cell with a boron-doped diamond electrode for simultaneous determination of Zn2+ and Pb2+ ions in water samples. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Analytical Methods, v. 6, p. 8526-8534, 2014. |
DOI: |
https://doi.org/10.1039/C4AY01811G |
Idioma: |
Inglês |
Conteúdo: |
A versatile and robust thermostatted electrochemical flow cell (EFC) with a boron-doped diamond electrode (BDD) detector was employed to perform two distinct flow-injection electrochemical approaches. In the first approach, differential pulse anodic stripping voltammetry (DPASV) using a flowbatch analysis (FBA) is proposed. In the second approach, multiple pulse amperometry (MPA) employing multicommutation flow analysis (MCFA) is also presented. Both approaches were employed to simultaneously determine Zn2+ and Pb2+ in water samples. For this, a screen-printed electrode (SPE) was developed, and a BDD electrode was coupled to it and was inserted into the EFC. By employing the FBA with the DPASV technique, two analytical curves in concentration ranges from 11.5 to 80.6 mg L1 and 0.64 to 10.9 mg L1 for simultaneous determination of Zn2+ and Pb2+, respectively, were obtained. Moreover, limits of detection (LDs) of 0.62 mg L1 and 0.19 mg L1 were estimated respectively and a sampling frequency of 12 h1 was obtained. For MCFA with MPA, analytical curves from 830 to 4980 mg L1 and 140 to 820 mg L1 for simultaneous determination of Zn2+ and Pb2+ with LDs of 220.0 mg L1 and 41.0 mg L1 and a sampling frequency of 67 h1 were obtained. The developed EFC allowed a full on-line automation of the methods, covering the pretreatment of BDD, addition of standard solutions, dilutions, thermostatted control, and detection with and without electrochemical preconcentration. In addition, the low waste generation of only 700 mL may be useful for green chemistry purposes and sustainable research. MenosA versatile and robust thermostatted electrochemical flow cell (EFC) with a boron-doped diamond electrode (BDD) detector was employed to perform two distinct flow-injection electrochemical approaches. In the first approach, differential pulse anodic stripping voltammetry (DPASV) using a flowbatch analysis (FBA) is proposed. In the second approach, multiple pulse amperometry (MPA) employing multicommutation flow analysis (MCFA) is also presented. Both approaches were employed to simultaneously determine Zn2+ and Pb2+ in water samples. For this, a screen-printed electrode (SPE) was developed, and a BDD electrode was coupled to it and was inserted into the EFC. By employing the FBA with the DPASV technique, two analytical curves in concentration ranges from 11.5 to 80.6 mg L1 and 0.64 to 10.9 mg L1 for simultaneous determination of Zn2+ and Pb2+, respectively, were obtained. Moreover, limits of detection (LDs) of 0.62 mg L1 and 0.19 mg L1 were estimated respectively and a sampling frequency of 12 h1 was obtained. For MCFA with MPA, analytical curves from 830 to 4980 mg L1 and 140 to 820 mg L1 for simultaneous determination of Zn2+ and Pb2+ with LDs of 220.0 mg L1 and 41.0 mg L1 and a sampling frequency of 67 h1 were obtained. The developed EFC allowed a full on-line automation of the methods, covering the pretreatment of BDD, addition of standard solutions, dilutions, thermostatted control, and detection with and without electrochemical preconcentration. In addition, the low wa... Mostrar Tudo |
Palavras-Chave: |
Diamond eletrode; Eletrodo de diamante; Pb2+; Zn2+. |
Thesagro: |
Boro. |
Thesaurus NAL: |
boron. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02419naa a2200265 a 4500 001 1996038 005 2021-11-08 008 2014 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1039/C4AY01811G$2DOI 100 1 $aSANTOS, V. B. dos 245 $aA versatile and robust electrochemical flow cell with a boron-doped diamond electrode for simultaneous determination of Zn2+ and Pb2+ ions in water samples.$h[electronic resource] 260 $c2014 520 $aA versatile and robust thermostatted electrochemical flow cell (EFC) with a boron-doped diamond electrode (BDD) detector was employed to perform two distinct flow-injection electrochemical approaches. In the first approach, differential pulse anodic stripping voltammetry (DPASV) using a flowbatch analysis (FBA) is proposed. In the second approach, multiple pulse amperometry (MPA) employing multicommutation flow analysis (MCFA) is also presented. Both approaches were employed to simultaneously determine Zn2+ and Pb2+ in water samples. For this, a screen-printed electrode (SPE) was developed, and a BDD electrode was coupled to it and was inserted into the EFC. By employing the FBA with the DPASV technique, two analytical curves in concentration ranges from 11.5 to 80.6 mg L1 and 0.64 to 10.9 mg L1 for simultaneous determination of Zn2+ and Pb2+, respectively, were obtained. Moreover, limits of detection (LDs) of 0.62 mg L1 and 0.19 mg L1 were estimated respectively and a sampling frequency of 12 h1 was obtained. For MCFA with MPA, analytical curves from 830 to 4980 mg L1 and 140 to 820 mg L1 for simultaneous determination of Zn2+ and Pb2+ with LDs of 220.0 mg L1 and 41.0 mg L1 and a sampling frequency of 67 h1 were obtained. The developed EFC allowed a full on-line automation of the methods, covering the pretreatment of BDD, addition of standard solutions, dilutions, thermostatted control, and detection with and without electrochemical preconcentration. In addition, the low waste generation of only 700 mL may be useful for green chemistry purposes and sustainable research. 650 $aboron 650 $aBoro 653 $aDiamond eletrode 653 $aEletrodo de diamante 653 $aPb2+ 653 $aZn2+ 700 1 $aFAVA, E. L. 700 1 $aPESSOA-NETO, O. D. 700 1 $aBIANCHI, S. R. 700 1 $aFARIA, R. C. 700 1 $aFATIBELLO-FILHO, O. 773 $tAnalytical Methods$gv. 6, p. 8526-8534, 2014.
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