Round robin tests XRF-analysis XRF Round-robin test NRCGA-CAGS, China - Marines Sediment MS-BH1
Study organized by:
National Research Center for Geoanalysis - Chinese Academy of Geological Sciences
Material of proficiency test:
MS-BH1 (Marines Sediment)
Study finished:
2010 - 11
Literature:
Zertifikat Ringversuchsveranstalter
major elements [wt %]
| CRB | RV | 1sRV | Z-Score | |
| Na₂O | 2,550 | 2,710 | 0,080 | |
| MgO | 1,650 | 1,660 | 0,030 | |
| Al₂O₃ | 13,500 | 13,360 | 0,100 | |
| SiO₂ | 66,950 | 66,860 | 0,220 | |
| P₂O5 | 0,098 | 0,096 | 0,004 | |
| SO₃ | 0,170 | 0,160 | 0,010 | |
| K₂O | 3,090 | 3,130 | 0,040 | |
| CaO | 1,900 | 1,890 | 0,030 | |
| TiO₂ | 0,614 | 0,620 | 0,010 | |
| Fe₂O₃ tot | 4,080 | 4,160 | 0,070 | |
| MnO | 0,061 | 0,058 | 0,001 | |
| L.O.I.* | 5,120 |
trace elements [µg/g]
| CRB | RV | 1sRV | Z-Score | |
| As | 19,00 | 7,60 | 0,60 | |
| Ba | 530,00 | 576,00 | 12,00 | |
| Br | 39,00 | 39,40 | ||
| Ce | 39,00 | 67,00 | 2,30 | |
| Cl [%] | 0,656 | 0,61 | ||
| Co | 12,00 | 11,50 | 0,30 | |
| Cr | 67,00 | 57,20 | 3,00 | |
| Cu | 22,00 | 20,50 | 0,60 | |
| F [%] | 0,072 | 0,072 | ||
| Ga | 15,00 | 16,20 | 1,00 | |
| Ge | 1,10 | 1,10 | ||
| Hf | 7,80 | 8,10 | 0,50 | |
| La | 43,00 | 34,50 | 2,20 | |
| Nb | 9,00 | 12,20 | 1,60 | |
| Nd | 40,00 | 30,70 | 1,40 | |
| Ni | 19,00 | 26,80 | 0,60 | |
| Pb | 33,00 | 22,90 | 0,90 | |
| Pr | 12,00 | 5,40 | 0,10 | |
| Rb | 115,00 | 117,00 | 2,00 | |
| Sm | 15,00 | 5,40 | 0,10 | |
| Sr | 222,00 | 211,00 | 5,00 | |
| Th | 15,00 | 10,30 | 0,40 | |
| U | 1,50 | 2,10 | 0,20 | |
| V | 71,00 | 69,00 | 2,60 | |
| Y | 32,00 | 30,90 | 1,40 | |
| Zn | 77,00 | 66,50 | 2,80 | |
| Zr | 337,00 | 328,00 | 10,00 |
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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