高純度アルミニウム中の鉄,銅,ケイ素の発光分光分析

抄録

For improvement of analytical sensitivity using quantrecorder or vacuum quantrecorder, iron, copper and silicon in high purity aluminum were analyzed under argon atmosphere by low voltage spark discharge.
The electrode erosion rate under argon atmosphere is higher than under nitrogen or oxygen atmosphere. The electrode erosion rate has a linear relation with the integrated value of discharge current ∫idt. Spectral line intensity depends mainly on the electrode erosion rate. Therefore, 50 μF, 50 pH, 10 Ω, 900 V and argon atmosphere may be better analytical condition rather than the now routin work conditions.