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Round robin tests XRF-analysis XRF Round-robin test IWG - PM-S, Pitscurrie Microgabbro

Study organized by:
International Workinggroup Geostandards (IWG) of the Association Nationale de la Recherche Technique, Paris
Material of proficiency test:
Pitscurrie Microgabbro PM-S
Study finished:
1994 - 1
Literature:
GEOSTANDARDS NEWSLETTERS, Vol. 18, No. 2, 1994

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O2,0902,080
MgO9,2909,340
Al₂O₃17,15017,140
SiO₂47,11047,000
P₂O50,0280,030
SO₃0,2530,250
K₂O0,1300,100
CaO12,41012,480
TiO₂1,1301,100
Fe₂O₃ tot10,21010,100
MnO0,1220,124

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba140,00148,00
Ce17,007,00
Co45,0049,00
Cr314,00314,00
Cu61,0059,00
Ga14,0016,00
Hf< 21,10
La< 52,80
Mo< 21,90
Nb< 22,60
Ni126,00115,00
Pb< 32,50
Rb< 21,00
Sr277,00280,00
Th< 20,05
U< 20,03
V187,00192,00
W< 30,30
Y11,0011,00
Zn58,0060,00
Zr39,0039,00

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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