Round robin tests XRF-analysis XRF Round-robin test IRMA - GSMS-3, marines Sediment
Study organized by:
Institute of Rock and Mineral Analysis (IRMA) of the Chinese Academy of Geological Sciences
Material of proficiency test:
GSMS-2 (marines Sediment)
Study finished:
1995 - 11
Literature:
GEOSTANDARDS NEWSLETTERS, Vol. 19, No. 2, 1995, GEOSTANDARDS NEWSLETTERS, Vol. 22, No. 1, 1998
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 3,850 | 3,750 | 0,144 | |
| MgO | 2,030 | 2,040 | 0,080 | |
| Al₂O₃ | 7,880 | 7,750 | 0,343 | |
| SiO₂ | 31,620 | 31,630 | 0,524 | |
| P₂O5 | 0,328 | 0,330 | 0,015 | |
| SO₃ | 0,698 | 0,510 | 0,200 | |
| K₂O | 1,600 | 1,600 | 0,132 | |
| CaO | 22,860 | 22,400 | 1,032 | |
| TiO₂ | 0,390 | 0,380 | 0,032 | |
| Fe₂O₃ tot | 3,930 | 3,790 | 0,153 | |
| MnO | 0,408 | 0,400 | 0,016 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 7,00 | 5,00 | 1,23 | |
| Ba | 2630,00 | 2500,00 | 230,00 | |
| Ce | 54,00 | 54,30 | 4,20 | |
| Cl | 21100,00 | 32700,00 | 563,00 | |
| Co | 52,00 | 53,40 | 4,20 | |
| Cr | 44,00 | 35,40 | 8,50 | |
| Cu | 248,00 | 232,00 | 9,60 | |
| F | 1226,00 | 700,00 | 110,00 | |
| Ga | 11,00 | 11,40 | 0,70 | |
| Hf | 2,00 | 2,40 | 0,34 | |
| La | 67,00 | 44,10 | 3,70 | |
| Mo | 5,00 | 6,00 | 1,10 | |
| Nb | 11,00 | 7,20 | 1,00 | |
| Ni | 105,00 | 107,00 | 11,50 | |
| Pb | 25,00 | 22,00 | 5,20 | |
| Rb | 46,00 | 49,80 | 4,80 | |
| Sr | 618,00 | 668,00 | 72,00 | |
| Th | 7,60 | 7,10 | 0,60 | |
| U | 2,10 | 1,10 | 0,30 | |
| V | 68,00 | 68,60 | 5,80 | |
| Y | 65,00 | 69,30 | 7,30 | |
| Zn | 139,00 | 140,00 | 24,50 | |
| Zr | 97,00 | 96,00 | 4,80 |
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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