Table 4 Samples analysis of different grain sizes by external laboratories and by XRF.
From: The effect of particle size and water content on XRF measurements of phosphate slurry
Sample ID | Particle size µm | Analysis | SiO2% | Al2O3% | CaO % | K2O % | P2O5% | Sr ppm | Fe2O3% | Cr2O3% |
|---|---|---|---|---|---|---|---|---|---|---|
Brut_106 | 106 | Lab | 19.0 | 0.68 | 13.9 | 0.24 | 8.15 | 387 | 0.22 | 0.01 |
XRF | 5.0 | 0.99 | 24.9 | 0.26 | 4.65 | 169 | 1.16 | 0.90 | ||
\(\Delta {w}_{i}(\%)\) | 73 | 46 | 79 | 8 | 43 | 56 | 424 | 511 | ||
Brut_160 | 160 | Lab | 19.2 | 0.64 | 14.4 | 0.22 | 8.35 | 412 | 0.20 | 0.01 |
XRF | 5.6 | 1.08 | 25.5 | 0.29 | 4.94 | 166 | 1.22 | 0.1 | ||
\(\Delta {w}_{i}(\%)\) | 71 | 68 | 77 | 30 | 41 | 60 | 487 | 562 | ||
Brut_200 | 200 | Lab | 13.0 | 0.60 | 17.6 | 0.18 | 10.5 | 510 | 0.20 | 0.01 |
XRF | 5.2 | 1.08 | 25.4 | 0.26 | 4.60 | 172 | 1.13 | 0.10 | ||
\(\Delta {w}_{i}(\%)\) | 60 | 80 | 44 | 42 | 56 | 66 | 462 | 558 | ||
Brut_250 | 250 | Lab | 9.9 | 0.53 | 19.6 | 0.15 | 11.8 | 570 | 0.18 | 0.01 |
XRF | 4.7 | 0.95 | 26.1 | 0.21 | 4.45 | 213 | 1.02 | 0.09 | ||
\(\Delta {w}_{i}(\%)\) | 52 | 78 | 33 | 42 | 62 | 63 | 459 | 531 | ||
Brut_300 | 300 | Lab | 9.1 | 0.42 | 20.0 | 0.10 | 12.4 | 590 | 0.15 | 0.01 |
XRF | 4.4 | 0.92 | 26.1 | 0.20 | 4.25 | 222 | 1.01 | 0.09 | ||
\(\Delta {w}_{i}(\%)\) | 52 | 119 | 31 | 95 | 66 | 62 | 574 | 621 | ||
Brut_425 | 425 | Lab | 6.6 | 0.40 | 21.9 | 0.09 | 13.3 | 640 | 0.14 | 0.01 |
XRF | 5.6 | 1.15 | 27.4 | 0.21 | 4.72 | 237 | 1.07 | 0.10 | ||
\(\Delta {w}_{i}(\%)\) | 16 | 184 | 25 | 117 | 64 | 63 | 642 | 698 |
