Research Article
Parameters Influencing Sulfur Speciation in Environmental Samples Using Sulfur K-Edge X-Ray Absorption Near-Edge Structure
Table 2
Signal-to-noise ratios (S/N) of (NH4)2SO4, CaSO4, Al(SO4)3, MnSO4, ZnSO4 * 7H2O, K2S2O3, Cr2(SO4)3 * 15H2O, CoSO4 * 7H2O, NiSO4 * 6H2O, and CuSO4 * 5H2O detected by GeD and LyD.
| Mixing ratio %
(sample : BN) | Germanium | Germanium | Germanium | Germanium | Lytle | Lytle | Lytle | Lytle | | 0.1 | 1.0 | 10.0 | 100.0 | 0.1 | 1.0 | 10.0 | 100.0 |
| | Al2(SO4)3 |
4.296
|
3.837
|
3.241
|
2.642
|
4.529
|
3.935
|
3.440
|
3.020
| | CaSO4 |
3.719
|
3.801
|
3.213
|
2.984
|
3.969
|
3.731
|
3.424
|
2.951
| | ZnSO4 |
3.650
|
3.598
|
2.893
|
2.714
|
3.532
|
3.640
|
3.056
|
2.894
| | NiSO4 |
4.308
|
3.965
|
3.334
|
3.136
|
4.196
|
4.145
|
3.503
|
3.385
| | NH4SO4 |
4.711
|
2.745
|
2.509
|
1.581
|
4.553
|
2.560
|
2.643
|
1.923
| | K2S2O3 |
2.431
|
2.345
|
1.868
|
1.593
|
3.582
|
2.399
|
2.264
|
1.892
| | FeSO4 |
3.936
|
3.551
|
3.216
|
3.021
|
3.778
|
3.749
|
3.409
|
3.132
| | CuSO4 |
4.301
|
4.022
|
3.483
|
3.100
|
4.027
|
4.229
|
3.660
|
3.407
| | CrSO4 |
4.120
|
4.021
|
3.539
|
2.915
|
3.865
|
4.033
|
3.633
|
3.074
| | CoSO4 |
4.212
|
3.810
|
3.348
|
3.144
|
4.333
|
4.032
|
3.241
|
3.203
|
| | Average | 3.968 | 3.569 | 3.064 | 2.683 | 4.036 | 3.645 | 3.227 | 2.888 | | Stdev % | 15.7 | 16.0 | 16.9 | 22.4 | 9.0 | 17.6 | 14.0 | 18.8 |
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