Round robin tests XRF-analysis XRF Round-robin test GeoPT 47, England - BIM-1, Silty Soil
Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT47
Material of proficiency test:
BIM-1, Silty Soil
Study finished:
2021 - 1
Literature:
Report - GeoPT47 Proficiency Testing Round 47 (Laborcode CRB = H119)
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| SiO₂ | 64,750 | 64,700 | 0,691 | 0,040 |
| TiO₂ | 0,780 | 0,785 | 0,016 | -0,140 |
| Al₂O₃ | 14,250 | 14,220 | 0,191 | 0,080 |
| Fe₂O₃tot | 6,610 | 6,581 | 0,099 | 0,150 |
| MnO | 0,156 | 0,152 | 0,004 | 0,530 |
| MgO | 2,210 | 2,200 | 0,039 | 0,130 |
| CaO | 0,410 | 0,393 | 0,009 | 0,940 |
| Na₂O | 1,110 | 1,120 | 0,022 | -0,230 |
| K₂O | 2,700 | 2,716 | 0,047 | -0,170 |
| P₂O5 | 0,139 | 0,140 | 0,000 | -0,090 |
| L.O.I. * | 6,630 | 6,790 | 0,498 | -0,160 |
| TOC * | 1,210 | 1,140 | 0,162 | 0,190 |
| C-gesamt | 1,250 | 1,220 | 0,024 | 0,600 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 431,00 | 427,60 | 13,70 | 0,12 |
| Cr | 156,00 | 129,00 | 5,00 | 2,72 |
| Cu | 42,00 | 44,00 | 1,90 | -0,62 |
| Ga | 19,00 | 17,40 | 0,90 | 0,86 |
| Hf | 6,70 | 6,31 | 0,40 | 0,52 |
| Nb | 10,00 | 12,70 | 0,70 | -1,95 |
| Ni | 75,00 | 68,40 | 2,90 | 1,14 |
| Pb | 38,00 | 40,00 | 1,80 | -0,55 |
| Rb | 93,00 | 101,00 | 4,00 | -0,99 |
| Sr | 73,00 | 72,00 | 3,00 | 0,25 |
| V | 117,00 | 117,30 | 4,60 | -0,03 |
| Y | 32,00 | 36,00 | 1,50 | -1,32 |
| Zn | 102,00 | 106,60 | 4,20 | -0,54 |
| Zr | 252,00 | 236,80 | 8,30 | 0,91 |
Legend
CRB
results CRB
cooperative test
results collaborative study
1s-RV
Standard deviation collaborative study
Z-Score
Difference of measured value from mean study
*
Value not certified
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