Determination of impurities in bismuth oxide by laser mass spectrometry

Abstract

We have developed a technique for the quantitative analysis of bismuth oxide by laser mass spectrometry. The technique makes it possible to determine up to 70 impurities in the range 10−6 to 10−4 wt %. To evaluate relative sensitivity factors and obtain calibration plots, we used reference samples prepared by diluting a standard SOG-21-1 graphite sample with high-purity bismuth oxide powder.