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Performance of an automated injection and replenishment system for capillary electrophoresis

โœ Scribed by H.E. Schwartz; M. Melera; R.G. Brownlee

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
726 KB
Volume
480
Category
Article
ISSN
1873-3778

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โœฆ Synopsis

An automated sample introduction system for capillary electrophoresis is described. The sampler allows injection by electromigration and hydrodynamic flow (using a controlled vacuum system). Both methods yielded good linearity of peak area response when the duration of injection or vacuum/voltage level was varied. A novel replenishment system, allowing fresh buffer solution into the capillary and electrolyte vials before each analysis, is shown to improve reproducibility.

Test results are shown for a capillary electrophoresis system utilizing 50 pm I.D. capillaries with a pH 7 phosphate buffer.

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