An improved procedure for packing capillaries for capillary electrochromatography
β Scribed by B. Lumley; T. M. Khong; D. Perrett
- Publisher
- Springer
- Year
- 2001
- Tongue
- English
- Weight
- 358 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0009-5893
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Fritless packed silica gel columns were prepared using sol-gel technology. A part of a 75 lm i.d. fused silica capillary was filled with a mixture of tetramethoxysilane and poly(ethylene glycol). After gelling at 40 8C and heating at 300 8C, the resultant silica gel was derivatized with dimethylocta
Capillaries consisting of two segments each packed with a different stationary phase were introduced for the control and manipulation of the electroosmotic flow (EOF) in capillary electrochromatography (CEC). This kind of column configuration was called segmented capillary where one segment was pack
## Abstract This review article summarizes the variety of polar stationary phases that have been employed for capillary electrochromatographic separations. Compared with reversedβphase stationary phases, the polar alternatives provide a completely different retention selectivity towards polar and c