Gel permeation chromatography: The effect of flow rate on efficiency. II

Abstract

SynopsisThe effect of flow rate on efficiency in gel permeation chromatoraphy has been examined over wide ranges of flow rate, i.e., linear flow velocities using columns of different diameters using both organic and inorganic packings. The results indicate a considerable increase in efficiency a t flow velocities below 0.02 cm/s. No lower limit to this increase could be determined due to experimental difficulties. Between flow velocities of 0.02-0.2 cm/s little efficiency is lost. '

Rubber

“…Correlation of efficiency in GPC as a function of flow rate was described (16). Analysis of fundamental obstacles to the SEC of polymers of ultrahigh molecular weights was presented (30).…”