Hollow cathode plume as an atomization/ionization source for solids mass spectrometry

Abstract

The hollow cathode plume (HCP) is applied as an atomization/ionization source for solids mass spectrometry. The qualities of high atomization rate and ability to discriminate effectively against background gaseous species are significant advantages for the technique. The ability to analyze nonconducting materials by mixing the sample with a conducting host matrix is also demonstrated. This particular method of sample analysis is also quite applicable to other types of glow discharges. The optimum sampling conditions for ion throughput are still being explored, but signal intensities to date are encouraging. 19 references, 5 figures.