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| Registros recuperados : 28 | |
| 8. |  | AMARAL, C. D. B.; AMAIS, R. S.; FIALHO, L. L.; SCHIAVO, D.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. Determination of carbon in digested samples and amino acids by inductively coupled plasma tandem mass spectrometry. Microchemical Journal, v. 122, n. 1, p. 29-32, 2015.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 10. | | MACHADO, R. C.; AMARAL, C. D. B. do; NOBREGA, J. de A.; NOGUEIRA, A. R. de A. Multielemental determination of As, Bi, Ge, Sb, and Sn in agricultural samples using hydride generation coupled to microwave-induced plasma optical emission spectrometry. Journal of Agricultural and Food Chemistry, v. 65, n. 23, p. 4839-4842, 2017.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 13. | | SILVA, C. S. da; BIANCHI, S. R.; AMARAL, C. D. B. do; SOUZA, G. B. de; NOGUEIRA, A. R. de A. Estudos de homogeneidade para determinação de macro e micronutrientes em fosfatos de rocha candidato a material de referência. In: ENCONTRO NACIONAL DE METODOLOGIAS E GESTÃO DE LABORATÓRIOS, 18.; SIMPÓSIO SOBRE PROCEDIMENTOS ANALÍTICOS E AS RASTREABILIDADE DOS RESULTADOS NA AGROPECUÁRIA, 5., 2013. Salvador, Ba. Resumo... Brasília: Embrapa, MAPA, Governo Federal, 2013. 1 p.| Biblioteca(s): Embrapa Solos. |
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| 14. | | MACHADO, R. C.; VIRGILIO, A.; AMARAL, C. D. B. do; SCHIAVO, D.; NOBREGA, J. de A.; NOGUEIRA, A. R. de A. Evaluation of inductively coupled plasma tandem mass spectrometry for determination of as in agricultural inputs with high REE contents. Journal of the Brazilian Chemical Society, v. 27, n. 11, p. 2076-2081, 2016.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 16. | | BOSSU, C. M.; BERNARDI, A. C. de C.; PEREIRA, C. D.; AMARAL, C. D. B.; SOUZA, G. B. de; NOBREGA, J. A.; NOGUEIRA, A. R. de A. Avaliação da adição de contaminantes (As, Pb, Cd e Cr) em forrageira (Brachiaria brizantha) candidata a material de referência. 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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| 17. | | AMARAL, C. D. B.; PESSOA, A. G. G.; SANTOS, M. C.; DONATI, G. L.; NÓBREGA, J. A.; NOGUEIRA, A. R. de A. Avaliação de diferentes preparos de amostra para especiação de arsênio em tecido vegetal por HPLC-ICP-MS com o emprego de padronização interna com espécie poliatômica. 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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| 18. | | AMARAL, C. D. B. do; MACHADO, R. C.; VIRGILIO, A.; SCHIAVO, D.; NOGUEIRA, A. R. de A.; NOBREGA, J. de A. Critical evaluation of internal standardization in ICP tandem mass spectrometry and feasibility of the oxygen reaction for boron determination in plants. In: Journal of Analytical Atomic Spectrometry, v.31, issue 6, p. 1179-1184, 2016| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 20. | | AMARAL, C. D. B. do; MACHADO, R. C.; BARROS, J. A. V. de A.; VIRGILIO, A.; SCHIAVO, D.; NOGUEIRA, A. R. de A.; NOBREGA, J. de A. Determination of rare earth elements in geological and agricultural samples by ICP-OES. Espectroscopy, v. 32, n. 10, p. 2-6, 2017.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
10/02/2015 |
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Data da última atualização: |
15/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
AMARAL, C. D. B.; AMAIS, R. S.; FIALHO, L. L.; SCHIAVO, D.; AMORIM, T.; NOGUEIRA, A. R. de A.; ROCHA, F. R. P.; NÓBREGA, J. A. |
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Afiliação: |
CLARICE D. B. AMARAL, UNIVERSIDADE FEDERAL DE SAO CARLOS/SÃO CARLOS, SP; RENATA S. AMAIS, CENA-USP/PIRACICABA; LUCIMAR L. FIALHO, UNIVERSIDADE FEDERAL DE SÂO CARLOS/SÃO CARLOS, SP; DANIELA SCHIAVO,, AGILENT TECNOLOGIES BRAZIL; TATIANE AMORIM, Agilent Technologies Brazil; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; FABIO R. P. ROCHA, University of Sao Paulo; JOAQUIM A. NÓBREGA, PROF. UNIVERSIDADE FEDERAL DE SÃO CARLOS, SP. |
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Título: |
A novel strategy to determine As, Cr, Hg and V in drinking water by ICP-MS/MS. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Analytical Methods, v. 7, p. 1215-1220, 2015. |
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DOI: |
DOI: 10.1039/c4ay02811b |
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Idioma: |
Inglês |
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Conteúdo: |
This work demonstrates the potential of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) in trace element analysis. Aiming Hg determination in water, sample preservation requires chloride addition, which presents formation of polyatomic interfering ions as a drawback for the determination of other analytes (e.g. As and V). Thus, the effect of chloride on As, Cr, V and Hg determination and the feasibility of using ICP-MS/MS to circumvent the interference were evaluated. A standard reference material (NIST SRM 1643e) and recoveries from tap water spiked with As, Cr, Hg and V were used for accuracy assessment and for the evaluation of matrix effects. The reaction between Hg and oxygen gas is not favorable in the octopole reaction system (ORS3). Therefore, Hg was accurately determined as a single atom ion (202Hg+) under the same analytical conditions adopted for As, Cr and V determination by monitoring 75As16O+, 52Cr16O+ and 51V16O+ while the ORS3 was pressurized with oxygen gas. The oxygen reaction mode significantly improved the accuracy for As, Cr and V, especially at the lowest spiked level, which is strongly affected by matrix effects. The signal gain in m/z 75 for a solution containing 1 ?g L?1 As in 0.48 mol L ?1 chloride medium was 1974% when employing single quadrupole mode. On the other hand, the signal increased only 7% when 0.75 mL min?1 O2 was used in mass shift mode proving the efficiency of the MS/MS mode. Thus, ICP-MS/MS and ORS3 pressurized with O2 gas effectively reduced the interference, and enhanced the accuracy and sensitivity for some specific isotopes in a complex medium. The limits of detection for V (51V16O+), Cr (52Cr16O+), As (75As16O+) and Hg (202Hg+) were estimated to be 2, 3, 1.6 and 38 ng L?1 at the 99.7% confidence level, respectively. MenosThis work demonstrates the potential of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) in trace element analysis. Aiming Hg determination in water, sample preservation requires chloride addition, which presents formation of polyatomic interfering ions as a drawback for the determination of other analytes (e.g. As and V). Thus, the effect of chloride on As, Cr, V and Hg determination and the feasibility of using ICP-MS/MS to circumvent the interference were evaluated. A standard reference material (NIST SRM 1643e) and recoveries from tap water spiked with As, Cr, Hg and V were used for accuracy assessment and for the evaluation of matrix effects. The reaction between Hg and oxygen gas is not favorable in the octopole reaction system (ORS3). Therefore, Hg was accurately determined as a single atom ion (202Hg+) under the same analytical conditions adopted for As, Cr and V determination by monitoring 75As16O+, 52Cr16O+ and 51V16O+ while the ORS3 was pressurized with oxygen gas. The oxygen reaction mode significantly improved the accuracy for As, Cr and V, especially at the lowest spiked level, which is strongly affected by matrix effects. The signal gain in m/z 75 for a solution containing 1 ?g L?1 As in 0.48 mol L ?1 chloride medium was 1974% when employing single quadrupole mode. On the other hand, the signal increased only 7% when 0.75 mL min?1 O2 was used in mass shift mode proving the efficiency of the MS/MS mode. Thus, ICP-MS/MS and ORS3 pressurized with O... Mostrar Tudo |
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Palavras-Chave: |
Analitical chemistry; As; Cr; Hg; ICP MS MS; Novel strategy. |
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Thesaurus NAL: |
drinking water. |
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Categoria do assunto: |
W Química e Física |
|
Marc: |
LEADER 02624naa a2200301 a 4500
001 2008313
005 2023-03-15
008 2015 bl uuuu u00u1 u #d
024 7 $aDOI: 10.1039/c4ay02811b$2DOI
100 1 $aAMARAL, C. D. B.
245 $aA novel strategy to determine As, Cr, Hg and V in drinking water by ICP-MS/MS.$h[electronic resource]
260 $c2015
520 $aThis work demonstrates the potential of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) in trace element analysis. Aiming Hg determination in water, sample preservation requires chloride addition, which presents formation of polyatomic interfering ions as a drawback for the determination of other analytes (e.g. As and V). Thus, the effect of chloride on As, Cr, V and Hg determination and the feasibility of using ICP-MS/MS to circumvent the interference were evaluated. A standard reference material (NIST SRM 1643e) and recoveries from tap water spiked with As, Cr, Hg and V were used for accuracy assessment and for the evaluation of matrix effects. The reaction between Hg and oxygen gas is not favorable in the octopole reaction system (ORS3). Therefore, Hg was accurately determined as a single atom ion (202Hg+) under the same analytical conditions adopted for As, Cr and V determination by monitoring 75As16O+, 52Cr16O+ and 51V16O+ while the ORS3 was pressurized with oxygen gas. The oxygen reaction mode significantly improved the accuracy for As, Cr and V, especially at the lowest spiked level, which is strongly affected by matrix effects. The signal gain in m/z 75 for a solution containing 1 ?g L?1 As in 0.48 mol L ?1 chloride medium was 1974% when employing single quadrupole mode. On the other hand, the signal increased only 7% when 0.75 mL min?1 O2 was used in mass shift mode proving the efficiency of the MS/MS mode. Thus, ICP-MS/MS and ORS3 pressurized with O2 gas effectively reduced the interference, and enhanced the accuracy and sensitivity for some specific isotopes in a complex medium. The limits of detection for V (51V16O+), Cr (52Cr16O+), As (75As16O+) and Hg (202Hg+) were estimated to be 2, 3, 1.6 and 38 ng L?1 at the 99.7% confidence level, respectively.
650 $adrinking water
653 $aAnalitical chemistry
653 $aAs
653 $aCr
653 $aHg
653 $aICP MS MS
653 $aNovel strategy
700 1 $aAMAIS, R. S.
700 1 $aFIALHO, L. L.
700 1 $aSCHIAVO, D.
700 1 $aAMORIM, T.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aROCHA, F. R. P.
700 1 $aNÓBREGA, J. A.
773 $tAnalytical Methods$gv. 7, p. 1215-1220, 2015.
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