THE USE OF DITHIZONE-POLYURETHANE FOAM SORBENT IN A SOLID-LIQUID PRECONCENTRATION STEP OF THE DETERMINATION OF LEAD IN DRINKING AND SURFACEWATERS AND IN SOILS
P. Rychlovsky et al., THE USE OF DITHIZONE-POLYURETHANE FOAM SORBENT IN A SOLID-LIQUID PRECONCENTRATION STEP OF THE DETERMINATION OF LEAD IN DRINKING AND SURFACEWATERS AND IN SOILS, Chemicke zvesti, 47(4), 1993, pp. 233-236
The preconcentration of metal on a polyurethane foam modified by dithi
zone was used for the determination of the trace amounts of Pb in wate
rs and soils. The optimum conditions for the sorption and the desorpti
on were found. The detection limit was found out for the determination
of Pb at 1.4 mu g dm(-3).