Citation: Tsing Lien CHANG, Ding Shun CAO. THE ATOMIC WEIGHT OF DYSPROSIUM[J]. Chinese Chemical Letters, ;1995, 6(6): 545-548.
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Isotopic ratio measurement was carried out for dysprosium, using the absolute isotopic ratio of europium of our laboratory standard, R151/153=0.9161(15)on 2σ basis, to calibrate the mass spectrometer, yielding the atomic weight of dysprosium, Ar (Dy)=162.500(2) on 2σ basis.In addition, a summary is given for the three rare earth elements examined in this series of atomic weight determinations.
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