Small-volume electrochemical detector for microcolumn liquid chromatography |
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Authors: | Y. Hirata, P. T. Lin, M. Novotný ,R. M. Wightman |
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Abstract: | A submicroliter electrochemical detector for liquid chromatography has been designed, using pressure-annealed pyrolytic graphite technology. The analytical performance of this detector was studied in connection with a reversed-phase packed microcapillary column at very low flow-rates. Although the miniaturized version of the electrochemical detector is less sensitive, a direct analysis of a number of urinary metabolites in 0.1–1.0 μl samples is feasible. |
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