A Direct-Reading Spectrometric Solution Method for the Partial Analysis of High-Silica Materials

Abstract

The development of a direct-reading spectrometric method for the determination of Al₂O₃, CaO, Fe₂O₃, T₁O₂, MgO and Mn₂O₃ in high silica (> 92 per cent S₁O₂) is described. Once the effect of silica on the spectral intensities has been evaluated it has proved possible to ‘set up’ the instrument on silica-free standards without loss of accuracy. The results for Al₂O₃, T₁O₂, MgO and Mn₂O₃ are at least as accurate as existing chemical procedures; the results for CaO and Fe₂O₃ are of routine control level