Fused-silica capillaries with surface-bound dextran layer crosslinked with diepoxypolyethylene glycol for capillary electrophoresis of biological substances at reduced electroosmotic flow

Capillary zone electrophoresis of biolog

Capillary zone electrophoresis of biological substances with surface-modified fused silica capillaries with switchable electroosmotic flow

✍ Smith, Joel Tim ;Rassi, Ziad El 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 607 KB

## Abstract A surface modification has been developed which yields fused silica capillaries with switchable electroosmotic flow (anodal/cathodal). The capillary surface is a composite material consisting of unreacted silanol groups, a layer of positively charged quaternary ammonium functions, and a