Concentration of some platinum-group metals in coal |
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| Authors: | Robert B Finkelman Philip J Aruscavage |
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| Institution: | U.S. Geological Survey, Reston, VA 22092 U.S.A. |
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| Abstract: | New data on some platinum group metals in coal indicate that the concentration of Pt is generally less than about 5 ppb, that of Pd is generally less than 1 ppb, and that of Rh is generally less than 0.5 ppb. No conclusive evidence was obtained concerning the mode of occurrence of these elements in coal. |
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