ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Determination of Niobium and Tantalum in Geological Materials by Atomic Emission Spectroscopy with Inductively Coupled Plasma

J. Kubová, J. Polakovičová, V. Streško, and J. Medveď

Geological Institute, Faculty of Natural Sciences, Comenius University, CS-84215 Bratislava

Abstract: A method using atomic emission spectroscopy with inductively coupled plasma has been developed for determination of low Nb and Ta contents in geological materials. The sample decomposition and the stabilization of Nb and Ta in the gained solution, as well as the separation-preconcentration procedure are described. The study of interferences, among which the Fe influence is the most significant, is performed and appropriate correction proposed. The reliability of the described procedure is checked by the analysis of certified reference materials and in the case of Ta also by instrumental neutron activation analysis.

Full paper in Portable Document Format: 474a225.pdf

Chemical Papers 47 (4) 225–229 (1993)