Atomic Masses of ¹H, ¹⁶O and ³²S

Abstract

The high resolution mass spectrometer at Osaka University has been used to measure the atomic masses of ¹H, ¹⁶O and ³²S. Mass differences of four doublets, C₃H₈–CS, C₃H₈–CO₂, CO₂–CS and C₂H₆S–C₅H₂, were measured by using peak-matching technique and mass values were calculated. The resulting mass values are ¹H=1.007 824 99 ± 14, ¹⁶O=15.994 912 1 ± 12 and ³²S=31.972 069 3 ± 10 u.