Round robin heads analyseren XRF XRF EQAS Geopt10 - CH-1, zeesediment
Organisator van de round robin test:
Internationale Vereniging van Geoanalysten en Geostandaarden Nieuwsbrief - Geopt10
Materiaal voor interlaboratoriumvergelijking:
CH-1, zeesediment
Studie afgerond:
2002 - 1
Literatuur:
Rapport Proficiency Testing GeOPT10 (Laboratory Code CRB = K2)
Belangrijkste elementen [%]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 2,420 | 2,432 | 0,024 | --- |
| MgO | 2,150 | 2,178 | 0,014 | --- |
| Al₂O₃ | 12,170 | 12,220 | 0,021 | --- |
| SiO₂ | 44,360 | 44,650 | 0,086 | --- |
| P₂O5 | 0,126 | 0,127 | 0,001 | --- |
| K₂O | 2,230 | --- | --- | --- |
| CaO | 13,120 | 13,276 | 0,040 | --- |
| TiO₂ | 0,617 | 0,614 | 0,003 | --- |
| Fe₂O₃ tot | 4,470 | 4,468 | 0,017 | --- |
| MnO | 0,338 | 0,305 | 0,002 | --- |
Spoorelementen [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 434,00 | 491,00 | 4,70 | --- |
| Br | 103,00 | 98,70 | 2,60 | --- |
| Co | 7,00 | 12,50 | 0,027 | --- |
| Cr | 61,00 | 60,60 | 1,30 | --- |
| Cu | 25,00 | 23,05 | 1,05 | --- |
| Ga | 13,00 | 1536,00 | 0,21 | --- |
| La | 26,00 | 31,10 | 0,41 | --- |
| Mo | 2,00 | 1,37 | 0,09 | --- |
| Nb | 1,00 | 12,80 | 0,27 | --- |
| Nd | 15,00 | 26,60 | 0,32 | --- |
| Ni | 41,00 | 43,80 | 0,70 | --- |
| Pb | 12,00 | 20,15 | 0,39 | --- |
| Rb | 94,00 | 107,00 | 0,90 | --- |
| Sr | 460,00 | 502,00 | 4,00 | --- |
| Th | 12,00 | 11,87 | 0,20 | --- |
| U | 2,50 | 2,62 | 0,07 | --- |
| V | 77,00 | 87,60 | 1,40 | --- |
| Y | 19,00 | 22,92 | 0,39 | --- |
| Zn | 92,00 | 94,20 | 1,10 | --- |
| Zr | 126,00 | 133,70 | 2,00 | --- |
Legend
CRB
CRB-resultaten
interlaboratorium testen
Collaboratieve onderzoeksresultaten
1s-RV
standaard Afwijking Interlaboratoriumtest
Z-Score
Verschillende functies voor medio en estudio promedio
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