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A new thermally immobilized fluorinated stationary phase for RP-HPLC

✍ Scribed by Liane Maldaner; Isabel C. S. F. Jardim

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
268 KB
Volume
33
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

A new fluorinated stationary phase was prepared through thermal immobilization of poly(methyl‐3,3,3‐trifluoropropylsiloxane) onto 5 μm Kromasil silica particles. The best conditions of immobilization time and temperature were determined through a central composite design and response surface methodologies. Physical–chemical characterization using solid‐state ^29^Si NMR measurements, infrared spectroscopy and elemental analysis showed that the immobilization process was effective to promote a coating of the support that corresponds to a monolayer of polymer. The stationary phase presents selectivity for positional isomers and good peak shape for basic compounds.

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