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Type: Artigo de periódico
Title: Preparation And Characterization Of A New Microwave Immobilized Poly(2-phenylpropyl)methylsiloxane Stationary Phase For Reversed Phase High-performance Liquid Chromatography.
Author: Begnini, Fernanda R
Jardim, Isabel C S F
Abstract: A new reversed phase high-performance liquid chromatography (RP-HPLC) stationary phase was prepared and its chromatographic and physical-chemical properties were evaluated. The new stationary phase was prepared with a silica support and poly(2-phenylpropyl)methylsiloxane (PPPMS), a phenyl type polysiloxane copolymer. Since this is a new copolymer and there is little information in the literature, it was submitted to physical-chemical characterization by infrared spectroscopy and thermogravimetry. The chromatographic phase was prepared through sorption and microwave immobilization of the copolymer onto a silica support. The chromatographic performance was evaluated by employing test procedures suggested by Engelhardt and Jungheim, Tanaka and co-workers, Neue, and Szabó and Csató. These test mixtures provide information about the hydrophobic selectivity, silanophilic activity, ion-exchange capacity, shape selectivity and interaction with polar analytes of the new Si-PPPMS reversed phase. Stability tests were developed using accelerated aging tests under both basic and acidic conditions to provide information about the lifetime of the packed columns.
Subject: Chromatography, High Pressure Liquid
Chromatography, Reverse-phase
Magnetic Resonance Spectroscopy
Rights: fechado
Identifier DOI: 10.1016/j.chroma.2013.04.070
Date Issue: 2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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