JIANG Huaikun XU Weidong. Determination of REEs in geological samples by preconcentration-neutron activation analysis on mini-reactor[J]. Nuclear techniques, 1998, (4).
JIANG Huaikun XU Weidong. Determination of REEs in geological samples by preconcentration-neutron activation analysis on mini-reactor[J]. Nuclear techniques, 1998, (4).DOI:
A preconcentration-NAA method of measuring Y and all REEs in La series is described. The REE samples were melten with Na2O2 and interference elements were separated by ion exchange
PMBP extraction
formic acid antiextraction
etc. The determination of REEs was then completed by NAA on a miniatute reactor as neutron source. The whole 15 REEs including Y can be analysed by this method. In addition to higher precision (RSD<5%) and lower detection limits (10-6-10-8)
the accuracies for REE determination are greatly improved.