Round robin tests XRF-analysis XRF GeoPT 39a, England - MNS-1, Syenite
Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT39a
Material of proficiency test:
MNS-1, Syenite
Study finished:
2016 - 7
Literature:
Report - GeoPT39a Proficiency Testing Round 39a (Laborcode CRB = V33)
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 6,850 | 6,980 | 0,104 | -0,620 |
| MgO | 0,250 | 0,230 | 0,006 | 1,450 |
| Al₂O₃ | 22,480 | 22,530 | 0,282 | -0,090 |
| SiO₂ | 51,470 | 51,890 | 0,573 | -0,360 |
| P₂O5 | 0,034 | 0,040 | 0,015 | -2,000 |
| K₂O | 9,090 | 9,124 | 0,131 | 0,130 |
| CaO | 2,280 | 2,275 | 0,040 | -0,060 |
| TiO₂ | 0,346 | 0,346 | 0,008 | 0,000 |
| Fe₂O₃tot | 2,660 | 2,632 | 0,046 | 0,310 |
| MnO | 0,124 | 0,139 | 0,004 | -2,000 |
| L.O.I. | 3,320 | 3,280 | 0,050 | 0,360 |
| C-tot. * | 0,230 | 0,310 | 0,040 | --- |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 447,00 | 420,00 | 13,50 | 1,00 |
| Ce | 286,00 | 293,80 | 10,00 | -0,39 |
| Cl * | 2100,00 | 1773,00 | 425,00 | --- |
| Cr | 48,00 | 42,80 | 1,90 | 1,35 |
| F * | 4050,00 | 3903,00 | 477,00 | --- |
| Ga | 22,00 | 22,00 | 1,10 | 0,02 |
| Hf | 12,00 | 10,10 | 0,60 | 1,67 |
| La | 160,00 | 162,90 | 6,00 | -0,21 |
| Nd | 84,00 | 89,40 | 3,60 | -0,74 |
| Pb | 110,00 | 115,00 | 4,50 | -0,56 |
| Pr | 31,00 | 28,90 | 1,40 | -0,74 |
| Rb | 182,00 | 192,40 | 7,00 | -0,75 |
| Sm | 16,00 | 11,40 | 0,60 | 3,65 |
| Sr | 1698,00 | 1714,00 | 44,70 | -0,18 |
| Th | 39,00 | 60,40 | 2,60 | -4,11 |
| U | 9,00 | 13,00 | 0,70 | -2,85 |
| V | 23,00 | 27,30 | 1,30 | -1,62 |
| Y | 28,00 | 25,00 | 1,20 | 1,21 |
| Zn | 91,00 | 96,90 | 3,90 | -0,76 |
| Zr | 547,00 | 589,30 | 18,10 | -1,17 |
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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