Interference effect of iron on the determination of gold in geological samples using the vapor generation technique and preconcentration in a graphite furnace

Date

2006-04-01

Author

Ertaş, Gülay
Ataman, Osman Yavuz

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A vapor generation procedure for the production of volatile species of An was studied using electrothermal atomic absorption spectrometry (ETAAS). The interference effects of iron in solution and in the gas phase in a quartz T-tube were studied for the first time in detail. A dual vapor generation system was used for a single heated quartz tube atomizer, so that it was possible to study interferences and classify them regarding their origins. Results show that both gas-phase and liquid-phase interferences are present. It was also concluded that since the total interference effect causes the An signal to be lower as compared to only the presence of gas-phase interactions in the experiment, the net liquid-phase interference from Fe should be suppressed. The method described in this study was used for the determination of gold in an ore reference material, Carlin Ore Mine, for the purpose of demonstrating the ability of the reported method to determine An without any extraction procedure.

Subject Keywords

Gold, Au, Iron, Fe, Electrothermal atomic absorption spectrometry, ETAAS, In situ trapping, Vapor formation

URI

https://hdl.handle.net/11511/32425

Journal

APPLIED SPECTROSCOPY

DOI

https://doi.org/10.1366/000370206776593618

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

G. Ertaş and O. Y. Ataman, “Interference effect of iron on the determination of gold in geological samples using the vapor generation technique and preconcentration in a graphite furnace,” APPLIED SPECTROSCOPY, pp. 423–429, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32425.