Jm. Suijlen et al., A HPLC-BASED DETECTION METHOD FOR FLUORESCENT SEA-WATER TRACERS USINGONLINE SOLID-PHASE EXTRACTION, Continental shelf research, 14(13-14), 1994, pp. 1523-1538
A sensitive and discriminating detection method for fluorescent water
tracers has been developed. The method is based on on-line solid phase
extraction and separation of the concentrated tracers by High Perform
ance Liquid Chromatography (HPLC). The concentrations of separated tra
cers are determined by (spectro) fluorometric detection. The detection
limits for a water sample of 11 to be extracted are in the range of a
few picograms rhodamine B per litre. The measurement system is design
ed for ship-borne use. Some applications concerning dispersal phenomen
a in the North Sea are presented.