Abstract
The use of different secondary cathodes is evaluated for the analysis of solid, nonconducting samples by means of dc glow discharge mass spectrometry. Optimum discharge conditions and analytical characteristics are reported for the analysis of a compacted iron ore sinter and a solid glass sample, both with known composition. These conditions seem to differ significantly for the two samples under consideration. This difference is assumed to be caused mainly by the electrical characteristics of the sample. The electrical resistivity of the sample is indeed found to be an important factor, determining the capabilities of the technique, especially with respect to the detection power.
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