The determination of arsenic in ores and tailings
2007
Brankovic, A.,Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Tesmanovic, Lj.,Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Zildzovic, S.,Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Kovacevic, D.,Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Iles, D.,Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia)
The objective of this paper is to present the results of the investigation aimed to evaluate the influence of different procedures applied for chemical destruction of mineral raw material on arsenic determination, using AAS-MHS method and selection of the optimal sample preparation procedure. The selected procedure should provide the efficient destruction of the sample, meaning transformation from solids to liquid, and total ionization of migrating atom or ion of arsenic, which is the basis for its quantitative determination. Natural zeolite ore and chemically identical zeolite mixture (reference material), with the adequate concentration of arsenic were used in the experimental work. The most appropriate procedure for chemical destruction can be preferentially and successfully applied also to the other mineral materials and tailings in which arsenic should be determined.
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