Four different methods for preparing PIXE targets from biological samples were compared. All methods involved doping with an internal standard and preparing target deposits of 1-4 mg/cm**2 on a thin substrate. The procedures were applied to reference materials (e. g. NBS standards) and to 'real' samples such as human kidneys and a liver, which had been analyzed by neutron activation analysis (NAA). For most elements, good agreement was observed between the results of the four target preparation methods and the reference values or the NAA results. Exceptions, however, were Br, Se and Cd, which were lost in some methods. The detection limits in the different methods were compared.
Mendeley saves you time finding and organizing research
Choose a citation style from the tabs below