A study of some nuclear reaction interferences in determination of nitrogen content of plant materials by 14-MeV neutron-activation analysis.
The nitrogen content of 10 medicinal plant species has been determined by fast-neutron activation analysis (FNAA). Correction factors for the effects of the (16)O(p, alpha)(13)N knock-on proton-induced reaction and the (n, 2n) reactions, which produce interfering positron-emitting radionuclides, have also been determined. The total relative interference from the (16)O(p, alpha)(13)N and (n, 2n) reactions of K, Cl, Fe and Br was found to be 5.1-32.1% for the plant samples.
Ndiokwere
C L
CL
Chemistry Department, University of California, Irvine, CA 92717, U.S.A.
Jerabek
P
P