Study into the accuracy of a remote-controlled system for multielement determination in foodstuffs using NAA

More accurate information on the trace element composition of foodstuffs is important in the field of nutrition. An appropriate approach to this problem is the application of neutron activation analysis for simultaneous multielement determination using high resolution gamma spectrometry. A system has been developed permitting determination of at least 28 elements, utilizing remote controlled radiochemical processing of irradiated biological samples. The reliability of the method has been ascertained by participation in inter-laboratory comparisons organized by the International Atomic Energy Agency (IAEA). Results for multielement determinations are given for potatoes (peeled), milk powder, fish solubles and algae