The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
1997
U.S. Geological Survey Bulletin 2144
Determination of 62 Elements in 8 Argonne Premium Coal Ash Samples by Automated Semiquantitative Direct-Current Arc Atomic Emission Spectrography
By Carol J. Skeen, B.J. Libby, and W.B. Crandell
Table 2. Element concentrations determined by direct-current arc spectrographic analyses of NIST standard reference material coal fly ash.
[Concentrations are in percentages (%) for the first nine elements (Si through Mn) and in micrograms per gram (µg/g) for the remaining elements (As through Zr). NIST, National Institute of Standards and Technology, formerly the National Bureau of Standards; SD, standard deviation; USGS, U. S. Geological Survey
| Element | NIST 1633 | NIST 1633a | ||||||||||
| NIST value1 (mean SD) |
USGS average2 |
NIST value1 (mean SD) |
USGS average3 |
|||||||||
| Si (%) | 27±3.3 | 22.8±0.8 | 26±2.6 | |||||||||
| Al | 17±2.8 | 14 | 18±3.1 | |||||||||
| Fe | 8.0±0.93 | 9.40±0. 10 | 11±1.7 | |||||||||
| Mg | 2.2±0.32 | .455±0.010 | .71±0.14 | |||||||||
| Ca | 5.4±1.2 | 1.11±0.01 | 1.3±0.31 | |||||||||
| Na | .25±0.03 | .17±0.01 | .16±0.03 | |||||||||
| K | 1.72 | 1.3±0.15 | 1.88±0.06 | 1.5±0.19 | ||||||||
| Ti | .80±0.15 | .8 | .85±0.18 | |||||||||
| Mn | .0493±0.0007 | .076±0.11 | .0190 | .026±0.08 | ||||||||
| As (µg/g) | 61±6 | 4<100 | 145±15 | 190±49 | ||||||||
| B | 430 | 440±46 | 32±4.0 | |||||||||
| Ba | 1,600±490 | 1,500 | 910±160 | |||||||||
| Be | 12 | 15±1.5 | 12 | 14±1.9 | ||||||||
| Ce | 170±29 | 180 | 160±53 | |||||||||
| Co | 38 | 38±4.9 | 46 | 38±6.2 | ||||||||
| Cr | 131±2 | 120±23 | 196±6 | 180±33 | ||||||||
| Cu | 128±5 | 100±25 | 118±3 | 93±21 | ||||||||
| Eu | 3.1±0.5 | 4 | 3.4±0.6 | |||||||||
| Ga | 49 | 39±5.8 | 58 | 54±11 | ||||||||
| La | 96±13 | |||||||||||
| Mo | 29 | 28±6.2 | ||||||||||
| Nd | 60±15 | 100±29 | ||||||||||
| Ni | 98±3 | 110±15 | 127±4 | 140±19 | ||||||||
| Pb | 70±4 | 74±9.0 | 72.4±0.4 | 76±12 | ||||||||
| Sc | 25±4.0 | 40 | 29±5.7 | |||||||||
| Sr | 1,380 | 1,700±30 | 830±30 | 900±140 | ||||||||
| V | 214±8 | 200±24 | 300 | 240±36 | ||||||||
| Y | 53±7.8 | |||||||||||
| Yb | 6.6±0.9 | |||||||||||
| Zr | 180±29 | |||||||||||
1 Values taken from NIST Certificates 1633
(National Bureau of Standards, 1975) and 1633a (National Bureau of Standards, 1979).
Values with no error listed are NIST information values; all others are NIST certified
values.
2 Average of 35 determinations Feb. to July 1983.
3 Average of 31 determinations June 1983 to Mar. 1984.
4 Lower limit of determination.
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