高周波スパーク型固体質量分析器における測定条件のイオン強度に及ぼす影響

概要

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For the precise and accurate quantitative analysis by a spark source mass spectrograph, the effects of source parameters on the ion intensities were investigated for various elements in iron, nickel, copper, aluminum and zinc matrices. <BR>Ion intensities were not varied by change of pulse width at 1020 μsec, but decreased with the ion accelerating voltage. In iron matrix, a group of elements increased ion intensities with increasing spark voltage, while the other group decreased intensities. The same tendency was observed in copper matrix with rate of pulse repetition. It was considered that these phenomena depended on the difference in the heat of sublimation of the matrix and component elements. Since the effects of the source parameters are varied with matrix and elements, the source should be kept constant during the measurement, and analyzing and standard samples must be measured under the same condition.
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