Concentration distributions in free zone electrophoresis

Free-zone electrophoresis in glass capillaries.

A simple theory of zone electrophoresis in open-tubular capillaries is developed. According to this theory, to achieve the highest resolution of zones, tubes with as small an inside diameter as possible should be used in combination with as high an applied voltage as feasible. To test this approach, we performed electrophoresis in glass capillaries with an internal diameter of 75 micron and a l...

Capillary zone electrophoresis pdf

HUMIC SUBSTANCES Capillary Zone Electrophoresis

Humic substances (HS) which are widespread in the soil, present structural complexity and polyelectrolyte properties. Many techniques and methods have been used to obtain more information about them, as reviewed by Davies and Ghabbour in 1999. The characterization of HS has been the focus of intense research for many years because the organic matter in soil contributes to the quality of the soi...

Zone electrophoresis of enzymes in bacterial taxonomy.

The electrophoretic mobilities in starch gels have been determined for eight enzymes in extracts of representative cultures of members of the family Enterobacteriaceae. These values were compared with each other and with those obtained from certain bacteria not in this family. The migrations of the eight enzymes were virtually identical for each of eight strains of Escherichia coli and for two ...

Zone and boundary diffusion in electrophoresis.

In chromatography, electrophoresis and sedimentation, an irreversible zone or boundary spreading is often observed which is greater than that attributable to ordinary molecular diffusion and to dispersion caused by flow in porous media. The additional spreading can often be identified with kinetic processes such as adsorption, partition, and chemical interconversion. The existence of this kinet...