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Round robin tests XRF-analysis XRF Round-robin test GeoPT8 - OU-4, Microdiorite

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT8
Material of proficiency test:
OU-4, Microdiorite
Study finished:
2001 - 3
Literature:
Preliminary Report - GeoPT8 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O3,5603,6100,060
MgO2,2702,3000,041
Al₂O₃14,93014,8300,200
SiO₂63,40063,3400,680
P₂O50,1770,1730,005
SO₃0,020  
K₂O2,7002,7000,047
CaO4,4904,4800,072
TiO₂0,7910,0770,016
Fe₂O₃ tot.5,8205,8600,090
MnO0,1400,1400,004

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba355,00360,1012,00
Ce53,0055,702,40
Co16,0013,500,70
Cr56,0054,702,40
Cu26,0027,301,30
Ga18,0017,400,90
Hf4,805,540,34
La32,0025,001,20
Nb11,0012,800,07
Nd27,0027,901,35
Ni25,0021,000,76
Pb18,0014,100,76
Pr9,006,850,41
Rb102,0098,503,90
Sr106,0099,904,00
Th9,008,420,49
V79,0082,703,40
Y47,0047,102,10
Zn71,0069,502,90
Zr197,00195,107,10

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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