Properties and Applications of Mixed Packing Capillary Electrochromatography
β Scribed by Zhang, Lihua ;Zhang, Yukui ;Shi, Wei ;Zou, Hanfa
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 74 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0935-6304
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Capillary Electrochromatography (CEC) is a novel electroseparation technique in which mobile phase transport through a capillary (50-200 mm i.d.) packed with stationary phase particles is achieved by electroosmotic flow (EOF) instead of a pressure gradient as in HPLC. For neutral compounds, separati
The operational parameters and factors which control the performance Ε½ . of capillary electrochromatography CEC using commercially available CEC instrumentation are evaluated and discussed. The CEC of neutral or ion-suppressed acidic analytes shows marked advantages such as increased column efficien
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