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Determination of gold in ores by flame and graphite furnace atomic absorption spectrometry using a vanadium chemical modifier

✍ Scribed by C. García-Olalla; A.J. Aller

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
873 KB
Volume
252
Category
Article
ISSN
0003-2670

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✦ Synopsis

The determination of gold in ores by both flame and graphite furnace atomic absorption spectrometry a.t 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 pg I-' and a detection limit of 1 pg 1-l (or 0.1 pg 6 -1 in the original sample) were obtained. The best linear range was between 1 and 120 pg 1-l and a characteristic mass of 1 pg u:as obtained.

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