Abstract
To analyze trace amount of elements nondestructively, neutron activation analysis is the only method to determine the absolute amount. Other analytical method, such as ICP-AES, requires chemical process of the sample to be prepared as solution, which cannot avoid two problems, contamination of the trace element from chemical reagent as well as yield problem to dissolve the sample. Recently, prompt gamma-ray analysis has been gathering the attention. The advantage of this method can be featured by its high sensitivity to B and H. Combined with the ordinary neutron activation analysis, wide range of the elements can be determined, nondestructively. Development of Ko method enables to determine any elements detected when only a single standard element is irradiated at the same time. We present the analysis of both B and Al in plant sample to show how the activation analysis can contribute in plant research.
