Round robin tests XRF-analysis XRF Round-robin test IRMA - GSPN-3, Manganese ore
Study organized by:
Institute of Rock and Mineral Analysis (IRMA) of the Chinese Academy of Geological Sciences
Material of proficiency test:
GSPN-3, marines Sediment, Manganerz
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 | 3,990 | 3,040 | 0,338 | |
| MgO | 3,620 | 3,560 | 0,140 | |
| Al₂O₃ | 5,180 | 4,670 | 0,280 | |
| SiO₂ | 14,200 | 12,100 | 0,500 | |
| P₂O5 | 0,310 | 0,360 | 0,050 | |
| SO₃ | 0,230 | 0,220 | 0,070 | |
| K₂O | 1,190 | 1,110 | 0,120 | |
| CaO | 2,430 | 2,220 | 0,200 | |
| TiO₂ | 0,580 | 0,540 | 0,040 | |
| Fe₂O₃ tot | 4,500 | 4,580 | 0,290 | |
| MnO | 30,000 | 31,900 | 1,000 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 37,00 | 54,00 | 10,00 | |
| Ba | 2600,00 | 2400,00 | 200,00 | |
| Cd | 22,00 | 23,00 | 3,00 | |
| Ce | 277,00 | 249,00 | 22,00 | |
| Cl | 7600,00 | 7700,00 | 700,00 | |
| Co | 1800,00 | 1600,00 | 90,00 | |
| Cr | 10,00 | 19,00 | 5,00 | |
| Cu | 11600,00 | 13300,00 | 1200,00 | |
| La | 123,00 | 184,00 | 13,00 | |
| Mo | 603,00 | 485,00 | 38,00 | |
| Nb | 19,00 | 47,00 | 3,00 | |
| Ni | 14100,00 | 10200,00 | 800,00 | |
| Pb | 297,00 | 709,00 | 36,00 | |
| Rb | 10,00 | 16,00 | 5,00 | |
| Sr | 503,00 | 853,00 | 73,00 | |
| V | 530,00 | 452,00 | 51,00 | |
| Zn | 1400,00 | 910,00 | 150,00 | |
| Zr | 260,00 | 612,00 | 32,00 |
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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