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| Registros recuperados : 211 | |
| 62. |  | SILVA, M. S. R. de A. da; HUERTAS TAVARES, O. C.; OLIVEIRA, I. S. R. de; SILVA, C. S. R. de A. da; SILVA, C. S. R. de A. da; VIDAL, M. S.; BALDANI, J. I.; JESUS, E. da C. Stimulatory effects of defective and effective 3-indoleacetic acid-producing bacterial strains on rice in an advanced stage of its vegetative cyclE. Environmental Microbiology, v. 53, p. 281?288, 2022.| Biblioteca(s): Embrapa Agrobiologia. |
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| 64. | | MARTINS, M. R.; ROGGIA, S.; OLIVEIRA JÚNIOR, A. G.; ANDRADE, G. F.; SILVA, C. S.; SITTA, R. Suscetibilidade do percevejo Euschistus heros a extratos bacterianos. In: JORNADA ACADÊMICA DA EMBRAPA SOJA, 11., 2016, Londrina. Resumos expandidos... Londrina: Embrapa Soja, 2016. p. 89-95. (Embrapa Soja. Documentos, 373).| Biblioteca(s): Embrapa Soja. |
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| 73. | | SILVA, C. S.; MONTAGNER, D. B.; EUCLIDES, V. P. B.; QUEIROZ, C. de A.; ANDRADE, R. A. S. Desempenho de novilhos de corte em pastos diferidos de Brachiaria brizantha e Brachiaria decumbens. Ciência Rural, Santa Maria, v. 46, n. 11, p. 1998-2004, nov. 2016.| Biblioteca(s): Embrapa Gado de Corte. |
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| 74. | | SILVA, F. V.; TREVISAN, L. C.; SILVA, C. S.; NÓBREGA, J. A.; NOGUEIRA, A. R. de A. Avaliação de espectrômetros de emissão ótica acoplados a plasma induzido com configuração axial e radial. In: WORKSHOP DE PÓS-GRADUAÇÃO, 8., 2002, São Carlos, SP. Resumos... São Carlos: USP-IQSC, 2002. p.72.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 78. | | FORTES, A. C. R.; COSTA, M. R. T. da R.; BOARI, A. de J.; SILVA, C. S. Seleção de primares para análise molecular em genótipos de dendezeiro. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA, 14., 2010, Belém, PA. Bolsista de iniciação científica: um aporte ao desenvolvimento da pesquisa agropecuária: anais. Belém, PA: Embrapa Amazônia Oriental, 2010. 1 CD-ROM. PIBIC 2010.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 211 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
13/05/2003 |
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Data da última atualização: |
20/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SILVA, F. V.; TREVIZAN, L. C.; SILVA, C. S.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. |
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Afiliação: |
FERNANDO V. SILVA, UFSCAR; LILIAN C. TREVIZAN, UFSCAR; CINTIA S. SILVA, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, UFSCAR. |
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Título: |
Evaluation of inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Spectrochimica Acta Part B, v.57, n.12, p.1905-1913, dec. 2002. |
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DOI: |
https://doi.org/10.1016/S0584-8547(02)00176-3 |
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Idioma: |
Inglês |
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Conteúdo: |
The analytical performance of two inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations, equipped with charge coupled device solid-state detectors was evaluated using Ar, Ba, Mg, and Ni as test elements. Both instruments have similar Echelle optical arrangements and radio-frequency generators, differing only in the viewing mode and in the diameter of the central injector tube, i.e. 2.3 for the axially and 1.4 mm for the radially viewed ICP. The figures of merit evaluated were: warm-up time, short- and long-term stabilities, UV and VIS spectral resolution and limit of detection (LOD) for Ni in 0.14 mol l-1 HNO3 and 1000 mg l-1 Cr media, respectively. The influence of residual carbon content on background equivalent concentration (BEC) and sensitivity attained for Al, As, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Se and Zn was also investigated in both viewing modes. The robustness, short- and long-term stabilities, and UV and VIS spectral resolutions were similar for both configurations. For the radially viewed equipment, the warm-up time was at least a factor of 2 shorter than that for the axially viewed configuration. On the other hand, the sensitivity attained for Ni with the axially viewed arrangement was approximately 20 times better than that with the radially viewed. In both viewing modes, and for most of the evaluated elements, the values of BEC and LOD were similar for all studied carbon concentrations (from 10 to 10 000 mg l-1 C) when working with robust plasma conditions. The Mg II/Mg I ratio at an applied power of 1.3 kW and a nebulizer gas flow-rate of 0.90 and 0.70 l min-1 for axially and radially viewed configurations were 10.6 and 13.7, respectively. Quantitative determinations were successfully performed using both systems. MenosThe analytical performance of two inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations, equipped with charge coupled device solid-state detectors was evaluated using Ar, Ba, Mg, and Ni as test elements. Both instruments have similar Echelle optical arrangements and radio-frequency generators, differing only in the viewing mode and in the diameter of the central injector tube, i.e. 2.3 for the axially and 1.4 mm for the radially viewed ICP. The figures of merit evaluated were: warm-up time, short- and long-term stabilities, UV and VIS spectral resolution and limit of detection (LOD) for Ni in 0.14 mol l-1 HNO3 and 1000 mg l-1 Cr media, respectively. The influence of residual carbon content on background equivalent concentration (BEC) and sensitivity attained for Al, As, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Se and Zn was also investigated in both viewing modes. The robustness, short- and long-term stabilities, and UV and VIS spectral resolutions were similar for both configurations. For the radially viewed equipment, the warm-up time was at least a factor of 2 shorter than that for the axially viewed configuration. On the other hand, the sensitivity attained for Ni with the axially viewed arrangement was approximately 20 times better than that with the radially viewed. In both viewing modes, and for most of the evaluated elements, the values of BEC and LOD were similar for all studied carbon concentrations (from 10 to 10 000 mg l... Mostrar Tudo |
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Palavras-Chave: |
Axial viewing; Figures of merit; ICP OES; Radial viewing. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/48494/1/PROCIARAN2002.00181.pdf
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Marc: |
LEADER 02556naa a2200229 a 4500
001 1046350
005 2022-06-20
008 2002 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/S0584-8547(02)00176-3$2DOI
100 1 $aSILVA, F. V.
245 $aEvaluation of inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations.$h[electronic resource]
260 $c2002
520 $aThe analytical performance of two inductively coupled plasma optical emission spectrometers with axially and radially viewed configurations, equipped with charge coupled device solid-state detectors was evaluated using Ar, Ba, Mg, and Ni as test elements. Both instruments have similar Echelle optical arrangements and radio-frequency generators, differing only in the viewing mode and in the diameter of the central injector tube, i.e. 2.3 for the axially and 1.4 mm for the radially viewed ICP. The figures of merit evaluated were: warm-up time, short- and long-term stabilities, UV and VIS spectral resolution and limit of detection (LOD) for Ni in 0.14 mol l-1 HNO3 and 1000 mg l-1 Cr media, respectively. The influence of residual carbon content on background equivalent concentration (BEC) and sensitivity attained for Al, As, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Se and Zn was also investigated in both viewing modes. The robustness, short- and long-term stabilities, and UV and VIS spectral resolutions were similar for both configurations. For the radially viewed equipment, the warm-up time was at least a factor of 2 shorter than that for the axially viewed configuration. On the other hand, the sensitivity attained for Ni with the axially viewed arrangement was approximately 20 times better than that with the radially viewed. In both viewing modes, and for most of the evaluated elements, the values of BEC and LOD were similar for all studied carbon concentrations (from 10 to 10 000 mg l-1 C) when working with robust plasma conditions. The Mg II/Mg I ratio at an applied power of 1.3 kW and a nebulizer gas flow-rate of 0.90 and 0.70 l min-1 for axially and radially viewed configurations were 10.6 and 13.7, respectively. Quantitative determinations were successfully performed using both systems.
653 $aAxial viewing
653 $aFigures of merit
653 $aICP OES
653 $aRadial viewing
700 1 $aTREVIZAN, L. C.
700 1 $aSILVA, C. S.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aNÓBREGA, J. A.
773 $tSpectrochimica Acta Part B$gv.57, n.12, p.1905-1913, dec. 2002.
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