Data/hora: 12/06/2024 09:29:36

Biblioteca(s): 	Embrapa Pecuária Sudeste.	
Data corrente: 	18/08/2005	
Data da última atualização: 	13/03/2023	
Autoria: 	TREVISAN, L. C.; VIEIRA, E. C.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A.	
Afiliação: 	LILIAN C. TREVIZAN, UFSCAR; EDIVAN C. VIEIRA, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, UFSCAR.	
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.	
Ano de publicação: 	2005	
Fonte/Imprenta: 	Spectrochimica Acta Part B: Atomic Stectroscopy, v. 60, n. 5, p. 575-581, 2005.	
DOI: 	10.1016/j.sab.2005.02.014	
Idioma: 	Inglês	
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.	
Palavras-Chave: 	Axially viewed; Factorial design; ICP OES; Mg II/Mg I; Sample introduction.	
Categoria do assunto: 	W Química e Física	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (15816-1) - UPC - AP - DD - PROCI-2005.00108 - TRE - 2005.00108 - DIS