Round robin tests XRF-analysis XRF Round-robin test IRMA - GSMS-2, 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 | 4,520 | 4,370 | 0,303 | |
| MgO | 2,910 | 3,010 | 0,106 | |
| Al₂O₃ | 11,250 | 11,370 | 0,335 | |
| SiO₂ | 49,700 | 50,730 | 1,030 | |
| P₂O5 | 0,173 | 0,480 | 0,033 | |
| SO₃ | 0,760 | 0,600 | 0,190 | |
| K₂O | 2,240 | 2,290 | 0,112 | |
| CaO | 5,620 | 5,675 | 0,279 | |
| TiO₂ | 0,600 | 0,610 | 0,031 | |
| Fe₂O₃ tot | 5,940 | 5,950 | 0,202 | |
| MnO | 0,583 | 0,590 | 0,023 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 11,00 | 8,20 | 1,90 | |
| Ba | 3243,00 | 3000,00 | 360,00 | |
| Ce | 74,00 | 80,80 | 5,50 | |
| Cl | 22700,00 | 36500,00 | 6100,00 | |
| Co | 73,00 | 82,00 | 6,00 | |
| Cr | 68,00 | 58,00 | 7,50 | |
| Cu | 358,00 | 359,00 | 21,00 | |
| F | 1734,00 | 1000,00 | 170,00 | |
| Ga | 17,00 | 18,90 | 3,60 | |
| Hf | 3,00 | 3,60 | 0,38 | |
| La | 71,00 | 60,30 | 7,80 | |
| Mo | 12,00 | 13,90 | 1,40 | |
| Nb | 13,00 | 11,00 | 2,40 | |
| Ni | 153,00 | 166,00 | 12,80 | |
| Pb | 41,00 | 37,50 | 11,00 | |
| Rb | 66,00 | 72,60 | 5,50 | |
| Sr | 303,00 | 298,00 | 24,60 | |
| Th | 10,80 | 11,80 | 1,40 | |
| U | 2,20 | 1,91 | 0,51 | |
| V | 98,00 | 101,00 | 8,50 | |
| W | 10,00 | 5,50 | 0,50 | |
| Y | 102,00 | 97,70 | 3,80 | |
| Zn | 145,00 | 135,00 | 19,00 | |
| Zr | 139,00 | 139,00 | 8,70 |
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
Order inquiry & contact
Important information
