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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
29/09/2014 |
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Data da última atualização: |
08/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, V. B. dos; FAVA, E. L.; PESSOA-NETO, O. D.; BIANCHI, S. R.; FARIA, R. C.; FATIBELLO-FILHO, O. |
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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. |
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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. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Analytical Methods, v. 6, p. 8526-8534, 2014. |
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DOI: |
https://doi.org/10.1039/C4AY01811G |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Diamond eletrode; Eletrodo de diamante; Pb2+; Zn2+. |
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Thesagro: |
Boro. |
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Thesaurus Nal: |
boron. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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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Embrapa Solos (CNPS) |
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| Registros recuperados : 7 | |
| 3. |  | RODRIGUES, L. P.; SOUTO, B. de M.; RAMOS, T. G. S.; FRANCO, O. L.; QUIRINO, B. F. Screening of a moxotó goat rumen small insert metagenomic library for cellulosic activity for biotechnological use. In: REUNIÃO ANUAL DA SBBQ, 42., 2013, Foz do Iguaçu, PR. [Anais...] São Paulo: SBBq, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 4. | | VIEIRA, F. S.; SOUTO, A. L.; COSTA, P. P. K. G.; JUSTEN, F.; RAMOS, T. G. S.; LIMA, K. S. de; ALMEIDA, J. R. M. de; DAMASO, M. C. T.; RODRIGUES, C. M. Desenvolvimento e aplicação de um método RP-UPLC-PDA para a análise simultânea de dez ácidos orgânicos derivados da bioconversão de glicerina. In: ENCONTRO DE PESQUISA E INOVAÇÃO DA EMBRAPA AGROENERGIA, 3., 2016, Brasília, DF. Anais ... Brasília, DF: Embrapa, 2016. p. 268-274.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 5. | | QUIRINO, B. F.; BERGMANN, J. C.; SOUTO, B. de M.; TUPINAMBA, D.; RAMOS, T. G.; SCHROEDER, L. F.; PERIM, L.; NORONHA, E. F.; BARRETO, C. C.; KRUGER, R. H. Metagenomic glycosyl hydrolases from the Amazon soil and goat rumen. In: SYMPOSIUM ON BIOTECHNOLOGY FOR FUELS AND CHEMICALS, 36., 2014, Flórida. Abstracts... Fairfax: Society for Industrial Microbiology and Biotechnology, 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 6. | | RAMOS, T. G. S.; JUSTEN, F.; CARNEIRO, C. V. G. C.; HONORATO, V. M.; FRANCO, P. F.; VIEIRA, F. S.; TRICHEZ, D.; RODRIGUES, C. M.; ALMEIDA, J. R. M. de. Xylonic acid production by recombinant Komagataella phaffii strains engineered with newly identified xylose dehydrogenases. Bioresource Technology Reports, v. 16, 100825, Dec. 2021. 6 p. PDF: il.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Agroenergia. |
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| 7. | | RODRIGUES, L. P.; SCHROEDER, L. F.; RAMOS, N. S. P. L.; RAMOS, T. G.; MOURA, C. O.; SOUTO, B. de M.; BERGMANN, J. C.; COSTA, O. Y. A.; JUNIOR, D. A. J.; BARRETO, C. C.; KRUGER, R. H.; QUIRINO, B. F. Prospecção de celulases e hemicelulases utilizando diferentes substratos por abordagem metagenômica. In: CONGRESSO LATINO AMERICANO DE MICROBIOLOGIA, 21., 2012, Santos, SP. [Anais...]. São Paulo: Sociedade Brasileira de Microbiologia: Asociación Latinoamericana de Microbiologia, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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