Determination of gold and silver in dross using EDXRF technique

Abstract

Gold and silver in dross were determined by energy-dispersive X-ray fluorescence technique. Sample was prepared by pressed pellet method using microcrystalline cellulose powder as binder, and a method of standard additions was used for quantification. L β X-ray of gold (11.4 keV) and K β X-ray of silver (24.9 keV) were used for analysis. The measured concentrations of gold and silver were 132 ± 8 and 1181 ± 84 mg kg À1, respectively. The results were validated by instrumental neutron activation analysis technique. The t-test indicated that there was no significant difference between results obtained by the two techniques. Energy-dispersive X-ray fluorescence is a simple, precise and accurate technique for the determination of gold and silver in dross.

Determination of impurities in copper metal using total reflection X‐ray fluorescence spectrometry after matrix separation: Method validation and uncertainty assessment

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Development of a selective and sensitive colour reagent for gold and silver ions and its application to desktop scanner analysis

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Cuban zeolite for lead sorption: application for water decontamination and metal quantification in water using nondestructive techniques

“…It is a well-known fact that the preparation of solid samples for the analysis by PIXE (Hernández García et al 2012) and XRF (Kolbe and Hönicke 2015;Daar et al 2015;Ghosh et al 2015) is much simpler than by FAAS and ICP-OES, and most difficulties associated with digestion of samples are overcome. Moreover, when PIXE and XRF are used, samples are hardly consumed or deteriorated, which allows them to be analyzed by other techniques.…”