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Round robin tests XRF-analysis XRF Round-robin test GeoPT17 - OU-8, Calcearous Sandstone

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT17
Material of proficiency test:
OU-8, Calcearous Sandstone
Study finished:
2005 - 8
Literature:
Preliminary Report - GeoPT17 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O0,6000,6770,014
MgO1,8301,8790,034
Al₂O₃6,6406,5480,099
SiO₂54,07054,1200,594
P₂O50,028---  
SO₃0,280 ---
K₂O2,9702,9670,050
CaO16,71016,7110,219
TiO₂0,2510,2440,006
Fe₂O₃ tot1,3401,3040,025
MnO0,1550,1380,004

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba501,00528,0016,40
Cr37,0021,501,08
Ga7,906,300,38
Nb3,504,200,38
Ni165,00145,705,40
Pb17,009,600,55
Sr287,00264,009,14
V28,0029,801,43
Y14,0016,000,84
Zr199,00182,706,70

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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