Concentrations of platinum group elements in 122 U.S. coal samples
Open-File Report
97-53
By: C.L. Oman, R. B. Finkelman, and S.J. Tewalt
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Abstract
Analysis of more than 13,000 coal samples by semi-quantitative optical emission spectroscopy (OES) indicates that concentrations of the platinum group elements (iridium, palladium, platinum, osmium, rhodium, and ruthenium) are less than 1 ppm in the ash, the limit of detection for this method of analysis. In order to accurately determine the concentration of the platinum group elements (PGE) in coal, additional data were obtained by inductively coupled plasma mass spectroscopy, an analytical method having part-per-billion (ppb) detection limits for these elements. These data indicate that the PGE in coal occur in concentrations on the order of 1 ppb or less.
Suggested Citation
Oman, C., Finkelman, R.B., Tewalt, S., 1997, Concentrations of platinum group elements in 122 U.S. coal samples: U.S. Geological Survey Open-File Report 97-53, 8 p. ;28 cm., https://doi.org/10.3133/ofr9753.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Concentrations of platinum group elements in 122 U.S. coal samples |
| Series title | Open-File Report |
| Series number | 97-53 |
| DOI | 10.3133/ofr9753 |
| Year Published | 1997 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | 8 p. ;28 cm. |