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 - 7
Literature:
Report - GeoPT47 Proficiency Testing Round 47 (Laborcode CRB = H119)
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| SiO₂ | 52,620 | 52,520 | 0,579 | 0,090 |
| TiO₂ | 1,190 | 1,176 | 0,023 | 0,310 |
| Al₂O₃ | 14,270 | 14,320 | 0,192 | -0,130 |
| Fe₂O₃tot | 11,460 | 11,310 | 0,157 | 0,480 |
| MnO | 0,183 | 0,179 | 0,005 | 0,430 |
| MgO | 6,550 | 6,580 | 0,099 | -0,150 |
| CaO | 10,520 | 10,430 | 0,147 | 0,310 |
| Na₂O | 2,280 | 2,235 | 0,040 | 0,570 |
| K₂O | 0,710 | 0,720 | 0,015 | -0,330 |
| P₂O5 | 0,145 | 0,140 | 0,004 | 0,660 |
| L.O.I. * | 0,020 | 0,290 | 0,096 | -1,390 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 195,00 | 178,50 | 6,50 | 1,26 |
| Co | 45,00 | 44,40 | 2,00 | 0,14 |
| Cr | 157,00 | 165,00 | 6,10 | -0,65 |
| Cu | 128,00 | 121,90 | 4,70 | 0,64 |
| Ga | 19,00 | 17,40 | 0,90 | 0,87 |
| Hf | 3,10 | 2,76 | 0,20 | 0,90 |
| Ni | 67,00 | 74,30 | 3,10 | -1,17 |
| Rb | 26,00 | 24,40 | 1,20 | 0,66 |
| Sr | 192,00 | 185,00 | 6,70 | 0,52 |
| V | 264,00 | 275,50 | 9,50 | -0,61 |
| Y | 23,00 | 22,70 | 1,10 | 0,14 |
| Zn | 82,00 | 82,60 | 3,40 | -0,08 |
| Zr | 98,00 | 99,80 | 4,00 | -0,22 |
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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