The calibration method, derived from the theoretical equations, for flotation pulp has been examined using a batch, and an on-stream (closed circuit) x-ray analyser concerning the effects of co-existent elements, pulp density and particle size. According to this method, the size effect was corrected considerably even for size distributed samples.
As the applicable range of this equation to an ore grade and a pulp density was wider than a regression method, it was possible to analyse both feed pulp and concentration pulp with the same coefficients.
The results of this investigation showed that an accuracy of this method was lower than a multiple regression method using specific coefficients for each pulp, however, necessary amount of chemical analysis and calculation in order to determine the coefficients of this method should be reduced remarkably.
