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Performance of metal complex substituted polysiloxanes in capillary electrophoresis and capillary electrochromatography
- Source :
- Journal of Chromatography A. 967:289-301
- Publication Year :
- 2002
- Publisher :
- Elsevier BV, 2002.
-
Abstract
- Two novel polysiloxanes containing the metal complex, Co(TACN)(3+)2 (TACN= 1,4,7-triazacyclononane) were used as coatings for capillary electrophoresis (CE) and capillary electrochromatography (CEC). Through crosslinking and covalent bonding, the positively charged polymers were bonded to silica supports. In both CE and CEC, these coatings exhibited strong, pH-independent, and anodic electroosmotic flow (EOF), and had excellent long-term stability. Successful separations of aromatic acids were achieved in CE. In CEC, separation of alkylbenzenes (7 min) and basic compounds (20 min) was achieved with higher resolving power than conventional octadecyl silica packings. These polymers represent a new class of coatings for CE and CEC that generate pH-independent EOF.
- Subjects :
- chemistry.chemical_classification
Capillary electrochromatography
Chromatography
Siloxanes
Organic Chemistry
Electrophoresis, Capillary
Reproducibility of Results
General Medicine
Polymer
Biochemistry
Analytical Chemistry
Electrophoresis
chemistry.chemical_compound
Sulfonate
Capillary electrophoresis
chemistry
Electrochromatography
Metals
Covalent bond
Alkylbenzenes
Chromatography, Micellar Electrokinetic Capillary
Subjects
Details
- ISSN :
- 00219673
- Volume :
- 967
- Database :
- OpenAIRE
- Journal :
- Journal of Chromatography A
- Accession number :
- edsair.doi.dedup.....bdcd7fd2035bb283e388b1d5198974ca