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
Comparison of column packing techniques for capillary electrochromatography
✍ Scribed by Todd D. Maloney; Luis A. Colón
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 908 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1615-9306
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Important factors in packing capillary columns for capillary electrochro-Ž . matography CEC are emphasized and a new method to pack capillary columns is introduced. The new method uses centripetal forces to drive the packing material into the column. Advantages of this approach are that it offers a
With capillary electrochromatography CEC performed with capillaries Ž packed with octadecylsilica gel, photometric detection in the visible and in the . Ž . ultraviolet regions is possible in a packed section in-column detection or an Ž . emptied section on-column detection of the separation capilla