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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
18/08/2005 |
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Data da última atualização: |
13/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TREVISAN, L. C.; VIEIRA, E. C.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. |
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Afiliação: |
LILIAN C. TREVIZAN, UFSCAR; EDIVAN C. VIEIRA, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, UFSCAR. |
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Título: |
Use of factorial design for evaluation of plasma conditions and comparison of two liquid sample introduction systems for an axially viewed inductively coupled plasma optical emission spectrometer. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Spectrochimica Acta Part B: Atomic Stectroscopy, v. 60, n. 5, p. 575-581, 2005. |
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DOI: |
10.1016/j.sab.2005.02.014 |
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Idioma: |
Inglês |
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Conteúdo: |
A factorial design was applied to evaluate plasma conditions employing the Mg II 280/Mg I 285 nm intensity ratio in an axially viewed inductively coupled plasma optical emission spectrometer using different sample introduction devices: a concentric or a V-groove nebulizer and a cyclonic or a Sturman-Masters spray chamber. Effects of nebulizer gas flow-rate on Mg II/Mg I ratio were different in each introduction system. Robust conditions were obtained at low nebulizer gas flow-rate when using concentric nebulizer with a cyclonic spray chamber or a concentric nebulizer and a Sturman-Masters spray chamber. However, when using a V-groove nebulizer with a Sturman-Masters spray chamber, Mg II/Mg I ratio increased at high nebulizer gas flow-rates. Recovery experiments for a milk standard reference material diluted in water-soluble tertiary amines in both robust and non-robust conditions indicated that the robust condition was reached at higher nebulizer gas flow-rates and led to better accuracy and precision when using a V-groove nebulizer. |
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Palavras-Chave: |
Axially viewed; Factorial design; ICP OES; Mg II/Mg I; Sample introduction. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
null
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
