Abstract
A method of spectrochemical determination of minor and trace elements such as Al, Co, Cu, Mn, Ni, Ti, and V in olivines is described.
The cathode layer excitation with d.c.arc of 180 volts is used.
The standard mixtures corresponding to the forsterite contents of 0-100% are prepared by mixing silica, magnesium oxide and ferric oxide and the effects of thus prepared matrices upon the intensity ratios of the analytical line pairs of above mentioned minor and trace elements are investigated and the corrections are made for those effects.
Palladium is used as the internal standard.
The effects of matrix compositions were remarkable for Cu, Aland V, while they were neglisible for Co and Mn, No effects were found for Ni in the forsterite content of 30-75%.
The accuracies of obtained values are±5% for Ni, ±10% for Cu and Ti, ±15% for Co and Mn, ±20% for Al and ±30% for V.
