Abstract

The determination of gold in ores by both flame and graphite furnace atomic absorption spectrometry at different analytical wavelengths are compared. Vanadyl chloride was shown to be effective as a chemical modifier for determining gold in the presence of heavy metals. A sensitivity of 1 μg l −1 and a detection limit of 1 μg l −1 (or 0.1 μg g −1 in the original sample) were obtained. The best linear range was between 1 and 120 μg l −1 and a characteristic mass of 1 pg was obtained.

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