Round robin tests XRF-analysis XRF Round-robin test GeoPT 46, IAG - HG-1, Granodiorite
Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT46
Material of proficiency test:
HG-1, Granodiorite
Study finished:
2020 - 2
Literature:
Report - GeoPT46 Proficiency Testing Round 46 (Laborcode CRB = F90)
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| MgO | 1,150 | 1,150 | 0,023 | 0,000 |
| Al₂O₃ | 15,270 | 15,240 | 0,202 | 0,070 |
| SiO₂ | 68,270 | 68,330 | 0,724 | -0,040 |
| P₂O5 | 0,207 | 0,210 | 0,005 | -0,240 |
| K₂O | 5,090 | 5,090 | 0,080 | 0,000 |
| CaO | 1,700 | 1,703 | 0,031 | -0,050 |
| TiO₂ | 0,490 | 0,490 | 0,011 | 0,000 |
| Fe₂O₃tot | 2,680 | 2,669 | 0,046 | 0,120 |
| L.O.I. * | 0,930 | 0,920 | 0,073 | 0,040 |
| C-gesamt * | 0,071 | 0,056 | 0,010 | 0,710 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 701,00 | 701,40 | 35,40 | -0,01 |
| Cr | 512,00 | 506,40 | 15,90 | 0,18 |
| Cu | 50,00 | 52,40 | 2,30 | -0,52 |
| Ga | 24,00 | 24,00 | 1,20 | 0,00 |
| Nb | 14,00 | 12,50 | 0,70 | 1,11 |
| Ni | 14,00 | 19,00 | 1,00 | -2,56 |
| Rb | 259,00 | 266,00 | 9,20 | -0,38 |
| Sr | 462,00 | 450,00 | 14,40 | 0,42 |
| V | 34,00 | 39,80 | 1,80 | -1,59 |
| Zn | 28,00 | 32,00 | 1,50 | -1,32 |
| Zr | 179,00 | 174,00 | 6,40 | 0,39 |
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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