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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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Publication details

The article was received on 05 Aug 2003, accepted on 26 Sep 2003 and first published on 16 Oct 2003


Article type: Paper
DOI: 10.1039/B309339E
Lab Chip, 2003,3, 324-328

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    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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