Round robin tests XRF-analysis XRF Round-robin test NRCGA-CAGS, China - Marines Sediment MS-BH2
Study organized by:
National Research Center for Geoanalysis - Chinese Academy of Geological Sciences
Material of proficiency test:
MS-BH2 (Marines Sediment)
Study finished:
2010 - 11
Literature:
Zertifikat Ringversuchsveranstalter
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 2,310 | 2,470 | 0,100 | |
| MgO | 1,520 | 1,530 | 0,020 | |
| Al₂O₃ | 11,890 | 11,790 | 0,110 | |
| SiO₂ | 70,200 | 70,160 | 0,160 | |
| P₂O5 | 0,094 | 0,095 | 0,003 | |
| SO₃ | 0,110 | 0,110 | 0,010 | |
| K₂O | 2,670 | 2,710 | 0,030 | |
| CaO | 2,180 | 2,170 | 0,030 | |
| TiO₂ | 0,498 | 0,500 | 0,010 | |
| Fe₂O₃ tot. | 3,600 | 3,630 | 0,040 | |
| MnO | 0,056 | 0,051 | 0,002 | |
| L.O.I.* | 4,610 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 18,00 | 6,70 | 0,70 | |
| Ba | 487,00 | 504,00 | 7,00 | |
| Br | 36,00 | 36,50 | ||
| Cd | 0,40 | 0,10 | 0,02 | |
| Ce | 52,00 | 56,00 | 1,50 | |
| Cl [%] | 0,501 | 0,49 | ||
| Co | 10,00 | 9,70 | 0,30 | |
| Cr | 62,00 | 52,90 | 3,40 | |
| Cu | 17,00 | 16,10 | 1,10 | |
| F [%] | 0,062 | 0,062 | ||
| Ga | 12,00 | 13,70 | 0,80 | |
| Ge | 1,10 | 1,07 | ||
| Hf | 8,00 | 8,08 | 0,40 | |
| La | 37,00 | 30,40 | 2,00 | |
| Nb | 8,00 | 9,80 | 1,10 | |
| Nd | 36,00 | 27,70 | 2,70 | |
| Ni | 14,00 | 22,20 | 0,40 | |
| Pb | 30,00 | 21,00 | 0,90 | |
| Pr | 12,00 | 6,10 | 0,80 | |
| Rb | 101,00 | 102,00 | 2,00 | |
| Sm | 16,00 | 4,50 | 0,10 | |
| Sr | 222,00 | 187,00 | 4,00 | |
| Th | 14,00 | 9,60 | 0,50 | |
| U | 2,00 | 1,80 | 0,10 | |
| V | 63,00 | 60,00 | 2,20 | |
| Y | 26,00 | 25,80 | 0,80 | |
| Zn | 54,00 | 52,70 | 1,00 | |
| Zr | 340,00 | 339,00 | 6,00 |
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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