ELECTROLYTIC CONDUCTIVITY DETECTOR FOR SELECTIVE DETECTION OF CHLORINE-CONTAINING COMPOUNDS IN LIQUID-CHROMATOGRAPHY

The use of an electrolytic conductivity detector for chlorine-specific HPLC detection is described. The use of a miniaturized LC system with flow-rates up to 60 mu l/min allows the entire column effluent to be fed into the detector. The design of the laboratory-made interface sup porting the vaporization process by nebulizing the eluent is described in detail. Various parameters were evaluated to determine the perform ance of the coupling, also applied to environmental analysis. The dete ctor is shown to be sensitive to 52-123 pg of chlorine in chlorine-con taining compounds eluted by normal-phase HPLC.