The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
U.S. Geological Survey Bulletin 2144
Determination of 25 Elements in Coal Ash from 8 Argonne Premium Coal Samples by Inductively Coupled Argon Plasma-Atomic Emission Spectrometry
By Paul H. Briggs
Table 5. Concentrations of Na2O (in weight percent) and trace elements (in parts per million) in two coal reference materials ashed and then digested by acid decmposition.
[USGS, U.S. Geological Survey; ICAP-AES, inductively coupled argon plasma-atomic emission spectrometry; NIST, Nation Institue of Standards and Technology, formerly the National Bureau of Standards]
| USGS CLB-1 | NIST 1632a | |||
| This study, ICAP-AES | J.S. Kane (USGS, unpub. data, 1990)1,2 | This study, ICAP-AES | Gladney and others (1984)1,2 | |
| Na2O (%) | 0.28 | 0.31 | 0.48 | 0.48 |
| Be (ppm) | 14 | 16 | 5 | 6 |
| Co (ppm) | 91 | 87 | 29 | 27 |
| Cr (ppm) | 130 | 130 | 150 | 150 |
| Cu (ppm) | 140 | 140 | 68 | 70 |
| Li (ppm) | 85 | 110 | 130 | 150 |
| Mn (ppm) | 110 | 120 | 120 | 130 |
| Ni (ppm) | 250 | 250 | 79 | 85 |
| Sc (ppm) | 27 | 25 | 27 | 27 |
| Sr (ppm) | 880 | 930 | 370 | 380 |
| Th (ppm) | 20 | 18 | 20 | 19 |
| V (ppm) | 160 | 160 | 180 | 190 |
| Y (ppm) | 64 | 58 | 34 | 34 |
| Zn (ppm) | 660 | 660 | 120 | 120 |
| % ash | 7.8 | 23.5 | ||
1Reported on a whole-coal basis and converted to
an ash basis for comparison.
2Compilation of data obtained by various methods.
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