Use of glow discharge mass spectrometry for quality control of high-purity aluminium

Abstract

Observations on the use of a glow discharge mass spectrometer for the quality control of trace element levels in high-purity (99.999% or better) aluminium and aluminium alloys is presented. The procedures used, the extent of coverage of the Periodic Table, standardisation procedures and a review of the analytical results are presented and discussed. Statistical analysis of the results provides insight as to the best ways to assure consumers of these materials that their specifications are met. Other factors affecting results are also considered.