The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
1997
U.S. Geological Survey Bulletin 2144
Compilation of Multitechnique Determinations of 51 Elements in 8 Argonne Premium Coal Samples
By Curtis A. Palmer and Sarah A. Klizas
Table 1. Average concentrations of major elements in weight percent based on triplicate analyses.
[Calues in brackets are averages of two analyses, and numbers in parentheses are based on only one analysis. Data from high-precision techniques are in bold except outliers. An * indicates that the analysis was done in Denver. Complete data set is given in appendix 1. Material analyzed: (A) = ash, (C) = whole coal. --, no data]
| Element and technique | Argonne Premium Coal sample | |||||||
| UF PC-1 | WY PC-2 | IL PC-3 | PITT PC-4 | POC PC-5 | UT PC-6 | WV PC-7 | ND PC-8 | |
| Si | ||||||||
| ICAP-AES(A)* | 2.6 | 1.0 | 2.9 | 1.8 | 0.75 | 0.91 | 5.0 | 0.67 |
| WDXRF(A) | [2.67] | [1.24] | [3.04] | [1.96] | [.804] | (.893) | (4.90) | (.768) |
| DCAES(A) | 3.1 | 1.4 | 3.6 | 2.7 | .95 | .86 | 5.2 | .60 |
| DCAES(C) | 3 | .77 | 3 | 2 | .88 | -- | -- | -- |
| Al | ||||||||
| WDXRF(A) | [1.54] | [.672] | [1.21] | [.981] | [.548] | (.370) | (3.17) | (.45) |
| ICAP-AES(A) | 1.60 | .699 | 1.25 | .997 | .549 | [.347] | 3.15 | .400 |
| ICAP-AES(A)* | 1.6 | .66 | 1.3 | .96 | .57 | .38 | 3.2 | .40 |
| DCAES(A) | 2.4 | .53 | 2.0 | 2.1 | .71 | .32 | 3.9 | .23 |
| DCAES(C) | 2 | .48 | 2 | 2 | .85 | -- | -- | -- |
| Fe | ||||||||
| INAA(C) | 1.78 | .366 | 2.67 | 1.35 | .509 | .317 | .397 | .547 |
| WDXRF(A) | [1.93] | [.33] | [2.70] | [1.44] | [.521] | (.29) | (.37) | (.45) |
| ICAP-AES(A) | 1.86 | .367 | 2.72 | 1.32 | .507 | [.282] | .385 | .472 |
| ICAP-AES(A)* | 1.7 | .34 | 2.4 | 1.2 | .50 | .30 | .39 | .46 |
| DCAES(A) | 1.6 | .27 | 2.4 | 1.9 | .50 | .24 | .40 | .37 |
| DCAES(C) | 2 | .29 | 2 | 1 | .69 | -- | -- | -- |
| Mg | ||||||||
| WDXRF(A) | [.079] | [.26] | [.09] | [.03] | [.067] | (.048) | (.08) | (.42) |
| ICAP-AES(A) | .082 | .239 | .077 | .038 | .0548 | [.030] | .094 | .398 |
| ICAP-AES(A)* | .078 | .21 | .073 | .033 | .0554 | .030 | .085 | .351 |
| DCAES(A) | .15 | .37 | .12 | .073 | .11 | .041 | .097 | .51 |
| DCAES(C) | .099 | .20 | .098 | .048 | .077 | -- | -- | -- |
| Ca | ||||||||
| WDXRF(A) | [.40] | [1.12] | [.90] | [.20] | [.443] | (.401) | (.06) | (1.54) |
| ICAP-AES(A) | .445 | 1.19 | .960 | .206 | .456 | [.409] | .058 | 1.54 |
| ICAP-AES(A)* | .40 | 1.0 | .92 | .19 | .45 | [.43] | .058 | 1.4 |
| DCAES(A) | .64 | 1.2 | 1.6 | .41 | .58 | .29 | .078 | 1.3 |
| DCAES(C) | .58 | 1 | 2 | .29 | .80 | -- | -- | -- |
| Na | ||||||||
| INAA(C) | .0341 | .115 | .102 | .0343 | .0782 | .146 | .0388 | .529 |
| ICAP-AES(A) | .032 | .119 | .097 | .032 | .0826 | [.126] | .034 | .466 |
| ICAP-AES(A)* | .034 | .12 | .11 | .034 | .0826 | .13 | .036 | .493 |
| WDXRF(A) | [.03] | [.092] | (.13) | [.03] | [.071] | (.13) | (.05) | (.50) |
| DCAES(A) | .045 | .13 | .15 | .036 | .13 | .072 | .036 | (.25) |
| K | ||||||||
| INAA(C) | .269 | .0292 | .195 | .110 | .029 | [.022] | .505 | [.029] |
| WDXRF(A) | [.27] | [.03] | [.20] | [.11] | [.03] | (.02) | (.46) | (.03) |
| ICAP-AES(A) | .283 | .028 | .194 | .110 | .028 | [.014] | .495 | .014 |
| ICAP-AES(A)* | .29 | .033 | .22 | .11 | .035 | .028 | .49 | .037 |
| DCAES(A) | .30 | .033 | .26 | .13 | .036 | .017 | .36 | .037 |
| Ti | ||||||||
| WDXRF(A) | 0.080 | [0.051] | [0.07] | [0.059] | [0.040] | (0.02) | (0.24) | (0.02) |
| ICAP-AES(A) | .079 | .056 | .070 | .056 | .038 | [.023] | .260 | .020 |
| ICAP-AES(A)* | .075 | .051 | .069 | .050 | .040 | .023 | .23 | .019 |
| DCAES(A) | .053 | .036 | .066 | .057 | .028 | .019 | .18 | .018 |
| DCAES(C) | .10 | .044 | .092 | .091 | .082 | -- | -- | -- |
| P | ||||||||
| WDXRF(A) | [.006] | [.03] | [.004] | [.01] | [.002] | (.001) | (.007) | (.02) |
| ICAP-AES(A) | .0079 | .025 | .0059 | .011 | .0022 | [.00094] | .0084 | .012 |
| ICAP-AES(A)* | .0059 | .022 | .004 | .0080 | [.0023] | .0007 | .008 | .012 |
| WDXRF(C) | -- | .03 | -- | .009 | -- | -- | -- | .02 |
| DCAES(A) | -- | .026 | -- | -- | -- | (.00074) | (.017) | .011 |
| Mn | ||||||||
| WDXRF(A) | -- | -- | -- | -- | -- | -- | -- | (.007) |
| ICAP-AES(A) | .0041 | .0020 | .0076 | .0018 | .0016 | [.00041] | .0015 | .0080 |
| ICAP-AES(A)* | .0044 | .0020 | .0087 | .0021 | .0018 | .00042 | .0014 | .0082 |
| DCAES(A) | .0055 | .0033 | .0011 | .0036 | .0024 | .00061 | .0020 | .010 |
| DCAES(C) | .0053 | .0013 | .0016 | .0020 | .0019 | -- | -- | -- |
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