Round robin tests XRF-analysis XRF Round-robin test PRIS - PRIS S-1, Estuarine Sediment
Study organized by:
Postgraduate Resaerch Institute for Sedimentology (PRIS), Whiteknights, England
Material of proficiency test:
Estuarine Sediment PRIS S-1
Study finished:
1997 - 10
Literature:
Ergbnisprotokoll und Diskette von 08/1998
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 1,800 | 1,850 | 0,251 | |
| MgO | 2,620 | 2,680 | 0,173 | |
| Al₂O₃ | 14,110 | 13,780 | 0,211 | |
| SiO₂ | 47,560 | 47,690 | 1,023 | |
| P₂O5 | 0,249 | 0,260 | 0,037 | |
| SO₃ | 0,350 | 0,430 | 0,062 | |
| K₂O | 2,820 | 2,750 | 0,174 | |
| CaO | 7,120 | 7,230 | 0,402 | |
| TiO₂ | 0,750 | 0,760 | 0,044 | |
| Fe₂O₃ tot | 5,940 | 5,670 | 1,340 | |
| MnO | 0,098 | 0,098 | 0,007 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 28,00 | 19,00 | 3,90 | |
| Ce | 56,00 | 69,00 | 9,30 | |
| Co | 18,00 | 19,00 | 4,00 | |
| Cr | 11,00 | 105,00 | 18,40 | |
| Cu | 21,00 | 38,00 | 6,20 | |
| Hf | 3,50 | 4,10 | 0,60 | |
| La | 42,00 | 36,00 | 4,10 | |
| Ni | 48,00 | 47,00 | 8,30 | |
| Pb | 66,00 | 84,00 | 21,20 | |
| Rb | 127,00 | 124,00 | 11,00 | |
| Sr | 242,00 | 253,00 | 25,50 | |
| V | 117,00 | 115,00 | 19,60 | |
| Zn | 277,00 | 267,00 | 27,60 | |
| Zr | 138,00 | 134,00 | 38,80 |
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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