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An automatic sampling device for capillary zone electrophoresis

✍ Scribed by Kaljurand, M. ;Ebber, A. ;Somer, T.

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
343 KB
Volume
18
Category
Article
ISSN
0935-6304

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✦ Synopsis

An automatic sampling device has been developed for capillary zone electrophoresis. The sample is introduced to the column electrokinetically by rapidly exchanging buffer for sample in a narrow channel drilled in a plexiglass block. The autosampler is capable, under computer control, of performing multiple sample injections from a large volume sample source (such as a reaction vessel) as the sample concentration changes, and thus presents the possibility of analyzing time-varying processes by CZE. Peak area reproducibility in electropherograms obtained after use of the sampler is less than 1 % and efficiency is more than 2.2 x lo5 theoretical plates.

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