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KMID : 0385520070200060496
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Analytical Science & Technology
2007 Volume.20 No. 6 p.496 ~ p.501
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Determination of gold concentration in ore by ICP-AES with MIBK
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Lim Heon-Sung
Lee Sueg-Geun
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Abstract
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The 242.795 ㎚ on ICP-AES for the gold analysis was the most sensitive wavelength which was also interfered severely by the spectra of other metal ions such as manganese, chromium, cobalt, and iron. In order to analyze the gold in ore, the gold must be separated from the interfering ions. The best solvent for separation of gold in ore solution was 10 % n-hexane contained MIBK mixed solvent. The gold recovery was 97.5 % from mixed metal solution contained about 2 M HNO3 and 0.5 M HCl.
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KEYWORD
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gold, ore, MIBK, ICP-AES
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