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    J Chromatogr. 1990 Sep 7;516(1):61-7.

    Capillary gel electrophoresis for DNA sequencing. Laser-induced fluorescence detection with the sheath flow cuvette.

    Source

    Howard Hughes Medical Institute, University of Utah, Salt Lake City 84132.

    Abstract

    Capillary polyacrylamide gel electrophoresis separation of dideoxycytidine chain-terminated DNA fragments is reported. A post-column laser-induced fluorescence detector based on the sheath flow cuvette was used to minimize background signals due to light scatter from the gel and capillary. A preliminary mass detection limit of 10(-20) mol of fluorescein-labeled DNA fragments was obtained. The system was used to analyze an actual DNA sequencing sample. Theoretical plate counts of 2 x 10(6) were produced. Gel stability limits the performance of the current system.

    PMID:
    2286629
    [PubMed - indexed for MEDLINE]

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