The Density Balance Detector

These properties of the mobile phase will be changed in the presence of the solute and could affect the output of the thermistor in much the same way as a thermal conductivity detector. The detector would have to be used under isocratic conditions of development but if investigated further might provide the basis of a very useful detector for preparative LC where high sensitivities are not required. 

The presence of a solute in the mobile phase leaving a chromatographic column will change the thermal properties of the mobile phase, and thus, a device that continuously monitors the thermal properties of the eluent could act as an effective detector the katharometer employed as a gas chromatographic (GC) detector functions on this principle. The thermal properties 

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