Picoliter Cell Volume Potentiometric Detector for Open-Tubular Column LC

1 July 1983

journal article
Published by Oxford University Press (OUP) in Journal of Chromatographic Science

Vol. 21 (7) , 326-330
https://doi.org/10.1093/chromsci/21.7.326

Abstract

A detector for open-tubular column liquid chromatography based on an ion-selective microelectrode cell assembly is described. The microelectrode with tip diameter of approximately 1 μm is directly inserted into the downstream column end. Estimated detector cell volumes are about 10⁻¹⁴ l (25-μm i.d. column). Experimental evidence is presented that proves the cell volume to be smaller than 5 × 10⁻¹⁰ l. The detection system should be adequate for open-tubular columns with an inner diameter ≥ 5 μm.

Keywords

OPEN TUBULAR COLUMN
ION SELECTIVE
COLUMN LIQUID
CHROMATOGRAPHY BASED
CELL VOLUME
MICROELECTRODE CELL
SELECTIVE MICROELECTRODE

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