The possibilitties of electrophoretic separations with fused silica capillaries modified by sub/supercritical water

0491037 - ÚIACH 2019 SK eng A - Abstract
Karásek, Pavel - Horká, Marie - Roth, Michal - Planeta, Josef
The possibilitties of electrophoretic separations with fused silica capillaries modified by sub/supercritical water.
Book of abstracts. 24th International Symposium on Separation Sciences (ISSS 2018). Bratislava: Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, 2018 - (Hutta, M.; Bodor, R.; Halko, R.). s. 84-84. ISBN 978-80-971179-8-6.
[International Symposium on Separation Sciences /24./ - ISSS 2018, International Conference Analytical Methods and Human Health /21./ - AMHH 2018. 17.06.2018-20.06.2018, Jasná]
R&D Projects: GA ČR(CZ) GA16-03749S; GA MV VI20172020069
Institutional support: RVO:68081715
Keywords : sub/supercritical water * electrophoretic separations * silica capillaries * Staphylococcus aureus
OECD category: Analytical chemistry

In general, electrophoretic separations cannot be carried out only with basic "bare fused silica"
capillaries. In order to reduce the chemical activity of the surface, or because of the targeted influence of
the electroosmotic flow, the surface of the capillaries is often modified. These treatments include acid or
alkaline washing of the capillary to affect the surface charge or direct chemical bonding of the appropriate
compounds (Si-C phase, C18, butyl-phenyl, cholesterol, polyvinyl-alcohol, dimethylpolysiloxane,
polyethylene, PEG etc.). Almost in all cases, these modification are performed on the original, perfectly
smooth surface.
Permanent Link: http://hdl.handle.net/11104/0285112