Determination of the electrophoretic mobility of polystyrene particles by capillary electrophoresis
โ Scribed by Barbara VanOrman Huff; Gregory L. McIntire
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 342 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1040-7685
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โฆ Synopsis
Abstract
Capillary electrophoresis (CE) can be used to determine the electrophoretic mobilities of polystyrene particles from the migration times of these particles assuming that (1) the particles do not interact with the capillary wall, (2) the particles can be detected, and (3) the colloidal suspension of particles is physically stable over the time course of the CE experiment (i.e., > 5 min). CE offers advantages of small sample size, automation, and ease of analysis. CE determined mobility data are used to qualitatively assess the adsorption of polymeric surfactants onto polystyrene particles.
๐ SIMILAR VOLUMES
Capillary zone electrophoresis can be used to determine mobilities and diffusion coefficients for analytes. Mobilities are determined from measurements of migration times. Correction for electroosmotic flow must be made by measuring the flow magnitude using an uncharged marker substance. Diffusion c
In order to evaluate the influence of pKa on electrophoretic mobility (EM), two novel series of synthetic flavonoids comprising eight monohydroxyflavones and four tri-0-methylluteolins were studied. In this way the effect of varying molecular size on EM was eliminated in each series. A linear relati
The analytical capillary electrophoretic separation of polystyrene nanospheres is reported. Although these particles are negatively charged and possess intrinsic mobilities, their separations are based upon particle size with the smallest particles having the highest velocity through the capillary.