摘要
Five samples of the indium material were examined for the isotopic abundance, and no variation was found. The isotopic ratio R_(191/193) was precisely measured by thermal ionization mass spectrometry, yielding a new value of the atomic weight of indium, which after correction for the vaporization effect is 114.8185±0.0002.
Five samples of the indium material were examined for the isotopic abundance, and no variation was found. The isotopic ratio R_(191/193) was precisely measured by thermal ionization mass spectrometry, yielding a new value of the atomic weight of indium, which after correction for the vaporization effect is 114.8185±0.0002.