Round robin tests XRF-analysis XRF Round-robin test NRCGA-CAGS, China - Marines Sediment GSMS-5
Study organized by:
National Research Center for Geoanalysis - Chinese Academy of Geological Sciences
Material of proficiency test:
GBW 07335 (GSMS-5, Marines Sediment)
Study finished:
2010 - 11
Literature:
Zertifikat Ringversuchsveranstalter
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 2,100 | 2,300 | 0,200 | |
| MgO | 2,500 | 2,510 | 0,090 | |
| Al₂O₃ | 13,320 | 13,100 | 0,200 | |
| SiO₂ | 59,400 | 59,600 | 0,200 | |
| P₂O5 | 0,122 | 0,120 | 0,010 | |
| SO₃ | 0,250 | 0,220 | 0,010 | |
| K₂O | 2,700 | 2,710 | 0,060 | |
| CaO | 4,780 | 4,800 | 0,200 | |
| TiO₂ | 0,700 | 0,720 | 0,030 | |
| Fe₂O₃ tot | 5,270 | 5,200 | 0,200 | |
| MnO | 0,077 | 0,073 | 0,005 | |
| L.O.I.* | 8,540 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 13,00 | 8,00 | ||
| Ba | 407,00 | 396,00 | 19,00 | |
| Cd | 0,40 | 0,20 | ||
| Ce | 97,00 | 78,00 | 4,00 | |
| Cl [%] | 1,05 | 1,04 | 0,06 | |
| Co | 16,00 | 15,00 | 1,00 | |
| Cr | 83,00 | 78,00 | 10,00 | |
| Cu | 18,00 | 18,00 | 4,00 | |
| F [%] | 0,087 | |||
| Ga | 17,00 | 16,00 | 2,00 | |
| Hf | 5,00 | 5,00 | 0,40 | |
| La | 23,00 | 38,00 | 2,00 | |
| Nb | 10,00 | 13,70 | 0,80 | |
| Nd | 25,00 | 32,60 | 2,30 | |
| Ni | 31,00 | 36,00 | 5,00 | |
| Pb | 30,00 | 25,00 | 4,00 | |
| Pr | 5,00 | 8,30 | 0,30 | |
| Rb | 118,00 | 118,00 | 3,00 | |
| Sm | 5,00 | 6,20 | 0,30 | |
| Sr | 204,00 | 193,00 | 8,00 | |
| Th | 13,00 | 13,60 | 0,60 | |
| U | 1,80 | 2,70 | 0,40 | |
| V | 90,00 | 95,00 | 9,00 | |
| Y | 24,00 | 25,00 | 2,00 | |
| Zn | 85,00 | 79,00 | 8,00 | |
| Zr | 181,00 | 184,00 | 24,00 |
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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