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Issue 4, 2003
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Versatile 3-channel high-voltage power supply for microchip capillary electrophoresis

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Abstract

The fabrication of a battery operated 3-channel high voltage power supply for microchip capillary electrophoresis is described. The power supply consists of two positive and one negative DC–DC converters, a microprocessor controlled timer, a battery and a transformer to recharge the battery and feed the high voltage relays. This arrangement allows the possibility to control the potentials applied in the 0 to ±4000 V range to a variety of microchip setups. It can also be easily adapted to perform either gated or pinched injection. The inclusion of a rechargeable battery was adopted to feed the DC–DC converters to reduce noise levels and achieve portability.

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Article information


Submitted
05 Aug 2003
Accepted
26 Sep 2003
First published
16 Oct 2003

Lab Chip, 2003,3, 324-328
Article type
Paper

Versatile 3-channel high-voltage power supply for microchip capillary electrophoresis

C. D. García, Y. Liu, P. Anderson and C. S. Henry, Lab Chip, 2003, 3, 324
DOI: 10.1039/B309339E

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