The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
1997
U.S. Geological Survey Bulletin 2144
Determination of Selected Elements in Coal Ash from Eight Argonne Premium Coal Samples by Atomic Absorption Spectrometry and Atomic Emission Spectrometry
By Michael W. Doughten
Table 7. Comparison of element concentrations in NIST standard reference material 1633 determined in this study with certified values and with concentrations detemined in other studies.
[Concentrations for the first 14 elements are in micrograms per gram (µg/g); others are in weight percent. Methods used in this study: ICAP-AES, inductively coupled argon plasma-atomic emission spectrometry; GFAAS, graphite furnace atomic absorption spectrometry; FAAS, flame atomic absorption spectrometry. NIST, National Institute of Standards and Technology, formerly the National Bureau of Standards (NBS). Certified and information values for NIST 1633 are from NBS (1975). --, no data]
| Element | This study | NBS (1975)1 | Gladney and others (1987) | Kane (1989) | Ondov and others (1975) | Rowe and Steinnes (1977) | |
| Method | Conc. | ||||||
| Ba (µg/g) | ICAP-AES | 2,700 | -- | 2,665±160 | -- | 2,700±200 | 2,540 |
| Be | ICAP-AES | 11 | -- | 12.1±1.0 | -- | -- | -- |
| Cd | GFAAS | 1.5 | 1.45±0.06 | 1.47±0.15 | 1.56±0.26 | -- | -- |
| Co | FAAS | 41 | 38 | 40±3 | -- | 41.5±1.2 | 40.3±0.4 |
| Cr | ICAP-AES | 130 | 131±2 | 127±10 | -- | 127±6 | 129.2±2.7 |
| Cu | ICAP-AES | 130 | 128±5 | 129±7 | 130±6 | -- | 115±8 |
| Li | FAAS | 160 | -- | 170±80 | 170±13 | -- | -- |
| Mn | ICAP-AES | 510 | 493±7 | 494±20 | 496±34 | 496±19 | 488±14 |
| Ni | ICAP-AES | 94 | 98±7 | 98±6 | -- | 98±9 | 69±7 |
| Pb | GFAAS | 70 | 70±4 | 72±6 | 67±4 | 75±5 | -- |
| Sr | ICAP-AES | 1,400 | 1,430±60 | 1,380±100 | -- | 1,700±300 | 1,430±60 |
| V | ICAP-AES | 220 | 214±8 | 224±24 | -- | 235±13 | 237±20 |
| Y | ICAP-AES | 66 | -- | 64±4 | -- | 62±10 | -- |
| Zn | ICAP-AES | 210 | 210±20 | 211±11 | 210±10 | 216±25 | 201±6 |
| Al (%) | ICAP-AES | 11.9 | -- | 12.6±0.6 | -- | 12.7±0.5 | 12.35±0.25 |
| Ca | ICAP-AES | 4.58 | -- | 4.65±0.34 | -- | 4.7±0.6 | 4.69±0.14 |
| Fe | ICAP-AES | 6.05 | -- | 6.16±0.27 | -- | 6.2±0.3 | 6.2±0.05 |
| K | ICAP-AES | 1.80 | 1.72 | 1.69±0.09 | -- | 1.61±0.15 | 1.80±0.13 |
| Mg | ICAP-AES | 1.33 | 1.98 | 1.5±0.3 | 1.17±0.049 | 1.8±0.4 | 1.78±0.2 |
| Na | ICAP-AES | .31 | .307 | .313±0.02 | .295±0.023 | .32±0.04 | .283±0.014 |
| P | ICAP-AES | .12 | -- | .101±0.018 | -- | -- | -- |
| Ti | ICAP-AES | .77 | -- | .71±0.05 | -- | .74±0.03 | .70±0.03 |
1Values with no error listed are NIST information values; all others are NIST certified values.
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