Round robin tests XRF-analysis XRF Round-robin test 1994 - IWG - WS-E, Whin Sill Dolerite
Study organized by:
International Workinggroup Geostandards (IWG) of the Association Nationale de la Recherche Technique, Paris
Material of proficiency test:
Whin Sill Dolerite WS-E
Study finished:
1994 - 1
Literature:
GEOSTANDARDS NEWSLETTERS, Vol. 18, No. 2, 1994
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 2,500 | 2,470 | ||
| MgO | 5,470 | 5,500 | ||
| Al₂O₃ | 13,750 | 13,780 | ||
| SiO₂ | 50,900 | 50,700 | ||
| P₂O5 | 0,297 | 0,300 | ||
| SO₃ | 0,161 | 0,150 | ||
| K₂O | 0,990 | 1,000 | ||
| CaO | 8,910 | 8,950 | ||
| TiO₂ | 2,450 | 2,400 | ||
| Fe₂O₃ tot | 13,240 | 13,150 | ||
| MnO | 0,132 | 0,132 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 334,00 | 338,00 | ||
| Ce | 75,00 | 61,00 | ||
| Co | 42,00 | 44,00 | ||
| Cr | 95,00 | 99,00 | ||
| Cu | 80,00 | 65,00 | ||
| Ga | 22,00 | 23,00 | ||
| Hf | 4,00 | 5,30 | ||
| La | 29,00 | 27,00 | ||
| Mo | 4,00 | 3,70 | ||
| Nb | 16,00 | 16,00 | ||
| Ni | 42,00 | 44,00 | ||
| Pb | 13,00 | 13,80 | ||
| Rb | 24,00 | 25,00 | ||
| Sr | 409,00 | 410,00 | ||
| Th | < 2 | 3,00 | ||
| U | < 2 | 0,65 | ||
| V | 337,00 | 340,00 | ||
| W | < 3 | 0,50 | ||
| Y | 32,00 | 30,40 | ||
| Zn | 112,00 | 117,00 | ||
| Zr | 203,00 | 203,00 |
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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