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Determination of Gold by Flame Atomic Absorption Spectrophotometry using a New Chelating Agent
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.3, pp.391-396
Lee,
J., Uesugi,
K., Thoru,
N., Choi,
W., Kim,
K., &
Choi,
S.
(1995). Determination of Gold by Flame Atomic Absorption Spectrophotometry using a New Chelating Agent. Analytical Science and Technology, 8(3), 391-396.
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Abstract
A rapid preconcentration method based on solvent extraction is described for the determination of gold by flame atomic absorption spectrophotometry. Trace amounts of gold was extracted as a new chelating agent, 3-thiophenaldehyde-4-phenyl-3-thiosemicarbazone from pH 4.0 in diisobutyl ketone. The method is simple, fast, free from the effect of many interfering ions and has a high sensitivity and a good precision. Gold is quantitatively separated and concentrated from the elements in standard sample, and the value of the recovery was 91.7 and 108.3% by the proposed method.
- keywords
- Gold, Atomic Absorption Spectrophotometry, 3-TAPT
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