Analytische Bestimmung und Fraktionierung von Cu,Zn, Pb,Cd, Ni und Co in Böden und Unterwasserböden

Analytical methods for determination and fractionation of Cu, Zn, Pb, Cd, Ni, and Co in soils and underwater soils Using a wet oxidation procedure with mixtures of strong acids, even samples rich in both organic carbon and carbonate could be dissolved quantitatively in platinum crucibles. Fractionation of trace elements was performed by extraction with oxalate (boiling and at room temperature), and with EDTA. Analytical problems (mainly by contamination) could be eliminated by simple preventive arrangements.