DETERMINATION OF RARE-EARTH ELEMENTS IN SIXTEEN SILICATE REFERENCE SAMPLES BY SECONDARY ION MASS-SPECTROMETRY USING CONVENTIONAL ENERGY FILTERING TECHNIQUE

Rare earth elements were determined by secondary ion mass spectrometry for 13 silicate rock samples, ranging from ultramafic-mafic to acidic compositions, 2 feldspar and 1 biotite separates. As a whole, the investigated samples are characterized by matrices and rare earth elements spectra covering most geological applications. The present data are compared with reference values. The advantage of using secondary ion mass spectrometry as a fundamental tool for trace element detection in bulk samples in the few ppm-ppb region is demonstrated.