Round robin heads analyseren XRF RFA EQAS PCS - PL-1, Sediment
Organisator van de round robin test:
Pools Comité voor Normalisatie (PCS), Afdeling Fysische Chemie
Materiaal voor interlaboratoriumvergelijking:
PL-1, sediment
Studie afgerond:
1995 - 1
Literatuur:
in de vorm van analysecertificaten, maart 1996
Belangrijkste elementen [%]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 0,730 | 0,690 | --- | |
| MgO | 0,260 | 0,260 | --- | |
| Al₂O₃ | 5,390 | 5,390 | --- | |
| SiO₂ | 85,730 | 85,990 | --- | |
| P₂O5 | 0,099 | 0,101 | --- | |
| SO₃ | 0,024 | --- | ||
| K₂O | 1,880 | 1,840 | --- | |
| CaO | 0,410 | 0,420 | --- | |
| TiO₂ | 0,570 | 0,530 | --- | |
| Fe₂O₃ tot | 1,200 | 1,170 | --- | |
| MnO | 0,041 | 0,040 | --- |
Spoorelementen [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 351,00 | 354,00 | --- | |
| Ce | 30,00 | 40,10 | --- | |
| Co | 3,00 | 3,90 | --- | |
| Cr | 48,00 | 49,60 | --- | |
| Cu | 6,00 | 6,20 | --- | |
| Ga | 5,00 | 6,00 | --- | |
| Hf | 13,00 | 13,80 | --- | |
| La | 22,00 | 21,50 | --- | |
| Nb | 10,00 | 10,00 | --- | |
| Ni | 11,00 | 7,40 | --- | |
| Pb | 15,00 | 19,60 | --- | |
| Rb | 56,00 | 55,80 | --- | |
| Sr | 64,00 | 67,40 | --- | |
| Th | 7,50 | 6,30 | --- | |
| U | 2,20 | 2,20 | --- | |
| V | 24,00 | 24,10 | --- | |
| Y | 18,00 | 18,80 | --- | |
| Zn | 30,00 | 30,00 | --- | |
| Zr | 644,00 | 634,00 | --- |
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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Waarde niet gecertificeerd
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