Apparatus for Electrophoretic Separations in Short Capillaries

Authors

  • F. Opekar Charles University, Faculty of Science, Department of Analytical Chemistry, Prague

Keywords:

capillary electrophoresis, short capillary, rapid separation, sample dispensing, non-contact conductivity detection

Abstract

A specialized electrophoretic apparatus in H-configuration has been designed for separations in short capillaries with lengths of a few cm. The sample injection and the capillary rinsing are designed so that the capillary position is unchanged. The sample injector consists of an electronically-controlled six-way injection valve, a piezoelectric micropump and a delivery tube in which the separation capillary inlet is fixed. The sample is injec­ted without interrupting the separation voltage. The capillary rinsing is provided by a membrane pump genera­ting vacuum in the end vial. The apparatus is equipped with a contactless conductometric detector. All the operations and data acquisition are computer-controlled.

Published

2012-04-15

How to Cite

Opekar, F. (2012). Apparatus for Electrophoretic Separations in Short Capillaries. Chemické Listy, 106(4), 289–292. Retrieved from http://w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/979

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