Separations of chemically different particles by capillary electrophoresis

Fast, well-resolved separations of mixtures of chemically different latex particles (different numbers of attached carboxylate or sulfate groups) have been successfully achieved by capillary electrophoresis. Best experimental conditions of column inside diameter and length, buffer concentration and...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 1990-11, Vol.62 (22), p.2484-2490
Main Authors: Jones, Harlan K, Ballou, Nathan E
Format: Article
Language:English
Subjects:
400105 - Separation Procedures
Applied sciences
CALCULATION METHODS
DATA
ELASTOMERS
ELECTROPHORESIS
Exact sciences and technology
EXPERIMENTAL DATA
EXTRACTION APPARATUSES
EXTRACTION COLUMNS
Forms of application and semi-finished materials
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
LATEX
Latex and emulsion
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
Polymer industry, paints, wood
POLYMERS
RUBBERS
SEPARATION EQUIPMENT
Technology of polymers
THEORETICAL DATA
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Summary:Fast, well-resolved separations of mixtures of chemically different latex particles (different numbers of attached carboxylate or sulfate groups) have been successfully achieved by capillary electrophoresis. Best experimental conditions of column inside diameter and length, buffer concentration and pH, and applied voltage were identified for the separations. Electrophoretic migration times and mobilities were determined. The separations were characterized as to numbers of theoretical plates, selectivities, and resolution at different pH and applied voltage values. Numbers of theoretical plates ranged from about 400 to 3,000. Selectivities ranged from about 0.1 to 0.4, and resolution values ranged from 0.8 to 2.3. Electrophoretic mobilities varied especially at the higher applied voltages.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac00221a014