The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
U.S. Geological Survey Bulletin 2144
Determination of 29 Elements in 8 Argonne Premium Coal Samples by Instrumental Neutron Activation Analysis
By Curtis A. Palmer
Table 2. Concentrations (in micrograms per gram, µg/g) of 29 elements in Argopnne Premium Coal samples --continued.
[Concentrations were determined by instrumental neutron activation analysis (INAA). Errors in percent are based on one-sigma counting statistics only]
| Element | WV PC-7-1 | WV PC-7-2 | WV PC-7-3 | ND PC-8-1 | ND PC-8-2 | ND PC-8-3 |
| Na | 460±10% | 351±3% | 352±2% | 5,400±2% | 5,330±3% | 5,150±2% |
| K | 5,170±3% | 4,970±6% | 5,000±4% | 280±28% | <400 | 300±16% |
| Sc | 7.69±1% | 7.54±1% | 7.61±1% | .846±2% | .828±2% | .865±3% |
| Cr | 36.2±1% | 35.6±2% | 35.7±2% | 2.23±5% | 2.16±5% | 2.33±5% |
| Fe | 4,040±3% | 3,840±2% | 4,080±2% | 5,530±2% | 5,290±2% | 5,630±4% |
| Co | 7.65±2% | 7.91±2% | 7.72±3% | .771±3% | .761±3% | .802±3% |
| Ni | 13.0±20% | 18±20% | 13.1±19% | <6 | <3 | <3 |
| Zn | 14.0±4% | 12.5±4% | 14.0±4% | 5.71±5% | 5.5±7% | 5.86±5% |
| As | 5.8±12% | 5.29±3% | 7.40±3% | 2.67±4% | 2.61±4% | 2.61±4% |
| Se | 5.3±7% | 5.54±5% | 5.5±7% | .51±18% | .61±15% | .63±14% |
| Br | 16.9±2% | 16.9±3% | 16.9±3% | 1.49±6% | 1.34±6% | 1.43±6% |
| Rb | 29.8±3% | 28.5±3% | 31.2±4% | .36±30% | .99±26% | <1 |
| Sr | 60±11% | 73±19% | 58±17% | 628±4% | 580±9% | 583±5% |
| Sb | .521±2% | .540±3% | .502±4% | .148±7% | .155±8% | .158±9% |
| Cs | 1.88±2% | 1.87±2% | 1.84±3% | .072±10% | .097±23% | .089±9% |
| Ba | 166±11% | 116±5% | 116±6% | 699±4% | 660±4% | 671±3% |
| La | 21.7±2% | 21.6±2% | 21.3±2% | 2.79±3% | 2.84±3% | 2.84±3% |
| Ce | 36.0±2% | 35.2±3% | 36.1±2% | 4.34±3% | 4.33±3% | 4.68±5% |
| Nd | 12.4±8% | 11.0±7% | 12.4±9% | <3 | 2.1±25% | 2.5±22% |
| Sm | 3.56±2% | 3.50±2% | 3.51±2% | .420±3% | .419±3% | .388±3% |
| Eu | .674±2% | .651±2% | .697±4% | .079±4% | .077±4% | .087±4% |
| Tb | .408±2% | .390±2% | .402±3% | .052±9% | .052±15% | .063±7% |
| Yb | 1.69±3% | 1.61±7% | 1.52±5% | .317±9% | .298±10% | .245±6% |
| Lu | .202±3% | .194±5% | .191±6% | .039±13% | .035±9% | .035±8% |
| Hf | 1.88±2% | 1.80±2% | 1.80±2% | .342±4% | .341±3% | .340±4% |
| Ta | .675±2% | .617±3% | .630±5% | .095±6% | .088±5% | .095±5% |
| W | 1.33±7% | 1.19±8% | 2.53±4% | .38±17% | .25±31% | .43±13% |
| Th | 6.49±2% | 6.26±3% | 6.49±3% | 1.057±2% | 1.027±2% | 1.113±2% |
| U | 1.67±5% | 1.60±7% | 1.64±8% | .52±16% | .46±1% | <.2 |
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