Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/196763
Type: Artigo de periódico
Title: New Stationary Phases For High-performance Liquid Chromatography Based On Poly(methyltetradecylsiloxane) Thermally Immobilized Onto Zirconized Silica.
Author: Faria, Anizio M
Collins, Kenneth E
Collins, Carol H
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.
Subject: Chromatography, High Pressure Liquid
Molecular Structure
Polyenes
Polymers
Reproducibility Of Results
Silicon Dioxide
Siloxanes
Temperature
Thermogravimetry
Zirconium
Rights: fechado
Identifier DOI: 10.1016/j.chroma.2006.04.057
Address: http://www.ncbi.nlm.nih.gov/pubmed/16696991
Date Issue: 2006
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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