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Type: Artigo de evento
Title: High-performance Liquid Chromatographic Stationary Phases Based On Poly(methyloctylsiloxane) Immobilized On Silica: Ii. Chromatographic Evaluation
Author: Tonhi E.
Collins K.E.
Collins C.H.
Abstract: This work describes the chromatographic characterization of stationary phases prepared by deposition of poly(methyloctylsiloxane) (PMOS) on silica followed by immobilization using one of several different processes: thermal treatments (120 or 220°C for 4 h), microwave irradiation (495 W for 15 min), γ radiation (dose of 80 kGy) or self-immobilization. This evaluation was based on the chromatographic parameters of several test solutes. The stationary phases immobilized at 220°C and which underwent self-immobilization were not appropriate for chromatographic use but the other immobilized phases presented chromatographic performances similar in most respects to a commercial phase (Rainin C8) while the peak characteristics of the basic probe were significantly better with these phases. © 2002 Elsevier Science B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/S0021-9673(02)00006-7
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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