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Type: Artigo de periódico
Title: New stationary phases for high-performance liquid chromatography based on poly(methyltetradecylsiloxane) thermally immobilized onto zirconized silica
Author: Faria, AM
Collins, KE
Collins, CH
Abstract: The modification of silica with zirconium oxide followed by sorption and thermal immobilization of poly(methyltetradecylsiloxane) (PMTDS) is used to prepare a reversed stationary phase for high-performance liquid chromatography. The thermal immobilization of PMTDS on zirconized silica was optimized using a central composite design. The new stationary phase was characterized by spectroscopic and chromatographic methods. Stationary phases with good reproducibility and good chromatographic performance for various compounds were obtained. PMTDS thermally immobilized on zirconized silica presented quite significant chemical stability at pH 10 and 50 degrees C. (c) 2006 Elsevier B.V. All rights reserved.
Subject: poly(methyltetradecylsiloxane)
zirconized silica
stationary phases
experimental design
thermal treatment
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.chroma.2006.04.057
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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