Preparation and evaluation of amphiphilic silica-based monolithic column having surface-bound octanoyl-aminopropyl moieties for capillary electrochromatography
✍ Scribed by Guosheng Ding; Junlei Zhang; James J. Bao
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 405 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0173-0835
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## Abstract Monolithic silica columns with surface‐bound octadecyl (C18) moieties have been prepared by a sol‐gel process in 100 μm ID fused‐silica capillaries for reversed‐phase capillary electrochromatography of neutral and charged species. The reaction conditions for the preparation of the C18‐
A silica-based stationary phase with surface bound silylpropyl trialkylammonium functions was introduced and evaluated in the capillary electrochromatography of alkylbenzenes and pesticides. This stationary phase is referred to as octadecyldimethyl(3-trimethoxysilylpropyl) ammonium-silica (ODAS) and