抄録
In order to select the most suitable working conditions of qualitative spectrographic analysis of sulphide ore minerals for minor constituents, the following several fundamental experiments were performed with each specimen of both sphalerite and pyrite, using a Shimadzu NQM60 Type Quartz medinm spectrograph.
The working conditions discussed in the present study are as follows : (1) Excitation method (comparison of comparative sensitivities for anode and cathode layer excitation), (2) Gap (varied 2 to 4 mm), (3) Current (varied 4 to 8A-110V, DC), (4) Time, (5) Depth of crater (varied 1.5 to 3.0 mm.).
