The work done during the last few years in the development of suitable detectors for liquid chromatography has indicated that several methods of detection will be required to cover the diverse range of sample-types and separation procedures encountered in liquid chromatography. In this paper a new detector for liquid chromatography has been described and its potential use discussed. This design was based on results obtained using a commercially available polarographic electrode, the principle of which depends upon the properties of a carbon impregnated silicone rubber membrane acting as an electrical conducting medium. The electrode characteristics were examined for potential use as a detector in liquid chromatography and compared with the dropping mercury electrode. The detector response to a range of inorganic and organic compounds has been investigated, and the detector calibrated to assess its linearity, range of operation, and detection limit.