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Type: Artigo de periódico
Title: Use of near infrared emission spectroscopy in the study of supporting materials and stationary phases for liquid chromatography
Author: Gonzaga, FB
Jardim, ICSF
Pasquini, C
Abstract: Near infrared emission spectroscopy (NIRES) has been investigated in the study of different materials employed in liquid chromatography. The samples were heated in a nitrogen atmosphere and the emission spectra were obtained using a lab-made NIRES instrument. Through principal component analysis (PCA) using the raw emission spectra, it was possible to distinguish different materials according to their physical and/or chemical characteristics. Linear relationships between emissivity spectra and the contents of the coating material or the specific surface areas was observed for stationary phases or bare silicas, respectively. Furthermore, the thermal stability of stationary phases could be followed in real time. (c) 2006 Elsevier B.V. All rights reserved.
Subject: near infrared emission spectroscopy
stationary phase characterization
liquid chromatography
Country: Holanda
Editor: Elsevier Science Bv
Citation: Journal Of Chromatography A. Elsevier Science Bv, v. 1122, n. 41671, n. 174, n. 179, 2006.
Rights: fechado
Identifier DOI: 10.1016/j.chroma.2006.04.063
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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