Electroosmotic velocities of buffered solutions are shown for a bare silica capillary
Chapter 25, Problem 25-24(choose chapter or problem)
Electroosmotic velocities of buffered solutions are shown for a bare silica capillary and one with aminopropyl groups (silicaSiCH2CH2CH2NH2) covalently attached to the wall. A positive sign means that flow is toward the cathode. Explain the signs and relative magnitudes of the velocities. Electroosmotic velocity (mm/s) for E 4.0 104 V/m Capillary wall pH 10 pH 2.5 Bare silica 3.1 0.2 Aminopropyl-modified silica 1.8 1.3 SOURCE: K. Emoto, J. M. Harris, and M. Van Alstine, Grafting Poly(ethylene glycol) Epoxide to Amino-Derivatized Quartz: Effect of Temperature and pH on Grafting Density, Anal. Chem. 1996, 68, 3751. 25
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer