Meng Xianhou Bi Songling. Simultaneous determination of trace Sm, Eu, Gd and Dy in LiOH by isotope dilution mass spectrometry[J]. Nuclear techniques, 1993, (7): 420-426.
Meng Xianhou Bi Songling. Simultaneous determination of trace Sm, Eu, Gd and Dy in LiOH by isotope dilution mass spectrometry[J]. Nuclear techniques, 1993, (7): 420-426.DOI:
Simultaneous determination of trace Sm, Eu, Gd and Dy in LiOH by isotope dilution mass spectrometry
Gd and Dy in LiOH and LiF by IDMS is described. Sm
Eu
Gd and Dy are separated from other rare earth elements by P507 extractant containing resin. 147Sm
151Eu
160Gd and 160Dy are used as spikes. The ratios of 147Sm/149Sm
151Eu/153Eu
174[GdO]/176[GdO] and 160Dy/162Dy are measured by a mass spectrometer. Precisions of the method for Sm
Eu
Gd and Dy are ±10%
± 5.9%
± 9.7% and ±5.6% in samples containing 0.00820 μg/g Sm
0.00373 μg/g Eu
0.00569 μg/g Gd and 0.103 μg/g Dy respectively.A Model ZHT-05A single focusing mass spectrometer is used. Simultaneous determination of the four elements on the same filament is performed. The interoverlaping correlation of 176[GdO]+ with 176[DyO]+ is discussed.