PIXE ANALYSIS ON DESORPTION OF ELEMENTS FROM BOG MUD (II)

To obtain background information to formulate strategy to keep lakes, marshes and bogs free from pollution. soil and peat were sampled and analyzed continually. Sample preparation, size segregation and chemical extraction with ultra-pure water. 0.2M (NH₄)₂C₂O₄. 1M CH₃COONH₄, 0.01M EDTA·2Na, 1N HCl and 6N HCl were undertaken prior to the normal PIXE target preparation. It was found that with present improved PIXE plus correct chemical extraction procedure. chemical informations about a variety of mud components are easily brought through the element concentrations especially Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn and Br. The tendency that irreversible absorption components are more abundant than EDTA·2Na extraction components was common for Mn, Ni, Cu, Zn and Fe, The ratios of Ni. Cu and Zn to Fe in a irreversible absorption component were the same in an EDTA·2Na extraction component. On the other hand, Mn/Fe ratios were deviated to an EDTA·2Na extraction component side.