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Quantitative determination of gold in ore using energy‐dispersive XRF spectrometry
Author(s) -
Kasrai M.,
Fozoonmayeh L.,
Payrovan H.
Publication year - 1988
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300170605
Subject(s) - aqua regia , coprecipitation , gold ore , detection limit , methyl isobutyl ketone , mass spectrometry , chemistry , extraction (chemistry) , analytical chemistry (journal) , tellurium , solvent , chromatography , materials science , metallurgy , inorganic chemistry , metal , organic chemistry
A method is described for the analysis of gold ore in the ppm range using energy‐dispersive XRF spectrometry. Ore is digested in aqua regia and gold is separated by coprecipitation with tellurium, followed by solvent extraction into isobutyl methyl ketone (IBMK). The recovery of gold is better than 98% and the detection limit is 0.1 μg of gold.