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Type: | Artigo |
Title: | Self-immobilization of poly(methyltetradecylsiloxane) onto metalized silica particles as stationary phases for HPLC |
Author: | Carvalho, Giselle O. Collins, Carol H. Faria, Anizio M. |
Abstract: | This work presents a study of the sorption of a pre-synthesized polysiloxane, poly(methyltetradecylsiloxane) - PMTDS, onto zirconized and titanized-silica particles that results in efficient stationary phases for reversed phase liquid chromatography. The sorbed materials, after 6 days at room temperature without any chemical or physical agent, denominated as self-immobilized stationary phase, present appropriate polymeric layer thicknesses that cover the metalized silica surfaces. The self-immobilization of polymer onto titanized silica particles produces more homogeneous polymeric coatings and stationary phases without silanophilic activity. Zirconized silica-based phases were more chemically resistant, despite their strong retention of basic solutes. In general, the chromatographic performance and chemical stability of metalized silica-based self-immobilized PMTDS phases were similar to conventional chemically bonded stationary phases |
Subject: | Cromatografia liquida de alta pressão |
Country: | Brasil |
Editor: | Sociedade Brasileira de Química |
Rights: | Aberto |
Identifier DOI: | 10.5935/0103-5053.20160028 |
Address: | https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532016000701297 |
Date Issue: | 2016 |
Appears in Collections: | IQ - Artigos e Outros Documentos |
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