Round robin tests XRF-analysis XRF Round-robin test NRCGA-CAGS, China - Marines Sediment GSMS-2
Study organized by:
National Research Center for Geoanalysis - Chinese Academy of Geological Sciences
Material of proficiency test:
GBW 07315 (GSMS-2, Marines Sediment)
Study finished:
2010 - 11
Literature:
Zertifikat Ringversuchsveranstalter
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 4,440 | 4,430 | 0,200 | |
| MgO | 2,990 | 3,020 | 0,100 | |
| Al₂O₃ | 11,410 | 11,410 | 0,220 | |
| SiO₂ | 50,700 | 51,100 | 0,600 | |
| P₂O5 | 0,480 | 0,480 | 0,030 | |
| SO₃ | 0,460 | 0,630 | ||
| K₂O | 2,240 | 2,320 | 0,110 | |
| CaO | 5,610 | 5,740 | 0,220 | |
| TiO₂ | 0,590 | 0,610 | 0,030 | |
| Fe₂O₃ tot | 5,850 | 5,930 | 0,160 | |
| MnO | 0,572 | 0,590 | 0,030 | |
| L.O.I.* | 14,070 | 13 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 5,00 | 7,10 | 0,60 | |
| Ba | 3194,00 | 3100,00 | 100,00 | |
| Br | 160,00 | 145,00 | 6,00 | |
| Cd | 0,40 | 0,30 | ||
| Ce | 78,00 | 82,00 | 6,00 | |
| Cl [%] | 2,50 | 3,90 | ||
| Co | 82,00 | 81,00 | 6,00 | |
| Cr | 59,00 | 59,00 | 6,00 | |
| Cu | 371,00 | 357,00 | 10,00 | |
| F [%] | 0,126 | 0,11 | 0,01 | |
| Ga | 18,00 | 18,00 | 1,00 | |
| Hf | 3,30 | 3,60 | 0,40 | |
| Hg | 0,83 | 0,95 | 0,09 | |
| La | 72,00 | 62,00 | 4,00 | |
| Mo | 16,00 | 14,00 | 1,00 | |
| Nb | 12,00 | 11,00 | 1,00 | |
| Nd | 55,00 | 75,00 | 4,00 | |
| Ni | 157,00 | 167,00 | 12,00 | |
| Pb | 28,00 | 37,00 | 4,00 | |
| Pr | 14,00 | 17,00 | 1,00 | |
| Rb | 71,00 | 73,00 | 5,00 | |
| Sm | 8,00 | 18,00 | 1,00 | |
| Sr | 304,00 | 298,00 | 23,00 | |
| Th | 8,00 | 11,00 | 1,00 | |
| U | 1,50 | 2,00 | 0,50 | |
| V | 92,00 | 101,00 | 8,00 | |
| Y | 89,00 | 98,00 | 4,00 | |
| Zn | 127,00 | 137,00 | 15,00 | |
| Zr | 123,00 | 140,00 | 8,00 |
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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