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Type: Artigo de periódico
Title: High-performance Liquid Chromatographic Stationary Phases Based On Poly(dimethylsiloxane) Immobilized On Silica.
Author: Tonhi, Edivan
Collins, Kenneth E
Collins, Carol H
Abstract: This work describes the preparation and characterization of six stationary phases for high-performance liquid chromatography (HPLC) obtained by deposition of poly(dimethylsiloxane) (PDMS) in HPLC silica particles, followed by immobilization using different processes (thermal treatments, thermal treatment + microwave irradiation, self-immobilization + gamma irradiation and self-immobilization + microwave irradiation). The chromatographic parameters of all the phases were evaluated with a mixture of test compounds having varied natures (acid, basic and neutral). The stability of one of these phases was evaluated in both a neutral mobile phase and a higher pH mobile phase used at an elevated temperature, with promising results.
Subject: Chromatography, High Pressure Liquid
Hydrogen-ion Concentration
Silicon Dioxide
Rights: fechado
Identifier DOI: 
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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