Radionuclide X-ray fluorescence analysis was used for the determination of Cr, Fe, Cu, Zn and Pb in industrial wastewaters (from surface treatment of metals and glasses) after precipitation of determined elements by 8-hydroxyquinoline.
Radiometric X-ray fluorescence analysis was used for the determination of Mn, Fe, Cu, Zn and Pb in wastewater and sludges from three wastewater treatment plants in Bratislava (SR). Metals were determined in wastewaters after preconcentration by 8-hydroxyquinoline and in sludges by drying and pressing to pellets.238Pu and109Cd was used for excitation of fluorescence radiation.
Trace amounts of Zn /ng.ml–1/ were determined using a displacement reaction of /Zn2+/ org from the dithizone organic phase into the aqueous phase, with a substoichiometric amount of /Hg2+/ aq. The results were compared with direct substoichiometric IDA. Absorption spectrophotometry was used as a reference analysis.