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:
2022 - 1
Literature:
Report - GeoPT47 Proficiency Testing Round 47 (Laborcode CRB = H119)
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| SiO₂ | 53,120 | 52,920 | 0,582 | 0,180 |
| TiO₂ | 0,431 | 0,420 | 0,010 | 0,570 |
| Al₂O₃ | 6,100 | 6,090 | 0,093 | 0,070 |
| Fe₂O₃tot | 2,080 | 2,078 | 0,037 | 0,030 |
| MnO | 0,067 | 0,064 | 0,002 | 0,890 |
| MgO | 2,870 | 2,910 | 0,050 | -0,390 |
| CaO | 16,550 | 16,530 | 0,217 | 0,050 |
| Na₂O | 0,980 | 1,041 | 0,021 | -1,470 |
| K₂O | 1,360 | 1,340 | 0,026 | 0,390 |
| P₂O5 | 0,130 | 0,130 | 0,003 | 0,000 |
| L.O.I. | 16,250 | 16,220 | 0,210 | 0,070 |
| CO₂ * | 14,720 | 14,420 | 0,330 | 0,450 |
| TC | 41426 | 40470 | 656 | 0,730 |
| TOC * | 956 | 941 | 231 | 0,030 |
| TIC * | 40142 | 39366 | 913 | 0,420 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 2,00 | 6,40 | 0,39 | -5,69 |
| Ba | 202,00 | 196,90 | 7,11 | 0,36 |
| Co | 6,00 | 5,50 | 0,34 | 0,69 |
| Cr | 87,00 | 83,10 | 3,42 | 0,56 |
| Cu | 11,00 | 9,80 | 0,55 | 1,11 |
| Ga | 9,00 | 7,00 | 0,42 | 2,47 |
| Hf | 8,00 | 9,26 | 0,53 | -1,19 |
| Nb | 5,00 | 8,30 | 0,48 | -3,40 |
| Ni | 32,00 | 31,00 | 1,48 | 0,34 |
| Pb | 8,00 | 11,10 | 0,62 | -2,53 |
| Rb | 53,00 | 50,90 | 2,25 | 0,48 |
| Sr | 283,00 | 280,00 | 9,59 | 0,16 |
| V | 43,00 | 35,20 | 1,65 | 2,39 |
| Y | 26,00 | 24,00 | 1,19 | 0,86 |
| Zn | 33,00 | 32,00 | 1,52 | 0,33 |
| Zr | 354,00 | 343,00 | 11,40 | 0,48 |
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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