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

Spectrochemical determination of low tungsten contents in silicate rocks

J. Kubová

Geological Institute, Komenský University, CS-851 01 Bratislava

Abstract:  At the multielemental spectrochemical analysis of silicate rocks apart from tungsten up to 20 trace elements are determined. At these compromise conditions tungsten can be determined only over 30 ppm or even 100 ppm. In the present work the monoelemental spectrochemical procedure for determination of W in silicate rocks in mass fractions over 0.3 ppm is described. The sample is mixed with the mixture of PbCl₂ and AgN0₃ excited in A.C. arc. The accuracy of the obtained results was checked by means of standard reference materials.

Full paper in Portable Document Format: 376a767.pdf

Chemical Papers 37 (6) 767–772 (1983)