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Type: Artigo de periódico
Title: Evaluation of inductively coupled plasma optical emission spectrometers with axial configuration: interfaces with end-on gas and shear gas
Author: Silva, JCJ
Santos, DM
Cadore, S
Nobrega, JA
Baccan, N
Abstract: In this investigation, samples of whole bovine milk were diluted with water-soluble tertiary amines solution and introduced in two axially viewed inductively coupled plasma optical emission spectrometer (ICP OES) instruments equipped with different interfaces (shear gas and end-on gas interface). The accuracy and the Mg II (280.2 nm)/Mg I (285.2 nm) ratio were evaluated. Higher values for Mg II/Mg I were observed with the shear gas interface. However, these values were less affected by changes of instrumental parameters when using the end-on gas interface. Results with suitable accuracy were obtained for a certified reference material of powdered whole milk (NIST SRM 8435) using instruments equipped with each interface. (C) 2004 Elsevier B.V. All rights reserved.
Subject: axially viewed plasma
shear gas
end-on gas
whole bovine milk
Country: Holanda
Editor: Elsevier Science Bv
Citation: Microchemical Journal. Elsevier Science Bv, v. 77, n. 2, n. 185, n. 190, 2004.
Rights: fechado
Identifier DOI: 10.1016/j.microc.2004.02.012
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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