Round robin heads analyseren XRF XRF EQAS PCS - BPGM-1, sediment
Organisator van de round robin test:
Pools Comité voor Normalisatie (PCS), Afdeling Fysische Chemie
Materiaal voor interlaboratoriumvergelijking:
BPGM-1, sediment
Studie afgerond:
1995 - 1
Literatuur:
In de vorm van analysecertificaten, maart 1996
Belangrijkste elementen [%]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 0,520 | 0,500 | --- | --- |
| MgO | 0,220 | 0,220 | --- | --- |
| Al₂O₃ | 4,350 | 4,330 | --- | --- |
| SiO₂ | 88,570 | 88,980 | --- | --- |
| P₂O5 | 0,100 | 0,103 | --- | --- |
| SO₃ | 0,023 | --- | --- | |
| K₂O | 1,590 | 1,570 | --- | --- |
| CaO | 0,380 | 0,390 | --- | --- |
| TiO₂ | 0,310 | 0,310 | --- | --- |
| Fe₂O₃ tot | 0,890 | 0,890 | --- | --- |
| MnO | 0,024 | 0,024 | --- | --- |
Spoorelementen [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| Ba | 272,00 | 283,00 | --- | |
| Ce | 24,00 | 27,70 | --- | |
| Cr | 26,00 | 26,00 | --- | |
| Cu | 5,00 | 5,00 | --- | |
| Ga | 3,00 | 4,70 | --- | |
| Hf | 6,00 | 7,00 | --- | |
| La | 13,00 | 13,70 | --- | |
| Nb | 5,00 | 5,30 | --- | |
| Ni | 7,00 | 5,20 | --- | |
| Pb | 10,00 | 14,00 | --- | |
| Rb | 49,00 | 47,80 | --- | |
| Sr | 51,00 | 53,00 | --- | |
| Th | 4,50 | 4,20 | --- | |
| V | 20,00 | 18,00 | --- | |
| Zn | 22,00 | 22,90 | --- | |
| Zr | 282,00 | 278,00 | --- |
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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