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Round robin tests XRF-analysis XRF Round-robin test GeoPT7 - GBPG-1, Garnet-Biotite Plagiogneiss

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT7
Material of proficiency test:
GBPG-1, Garnet-Biotite Plagiogneiss
Study finished:
2000 - 7
Literature:
Preliminary Report - GeoPT7 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O3,5403,6000,180
MgO2,5202,6000,090
Al₂O₃15,95015,9000,200
SiO₂64,96064,9500,710
P₂O50,0800,0800,002
K₂O2,2702,2000,080
CaO2,8502,8000,050
TiO₂0,7120,6940,024
Fe₂O₃ tot.6,0206,0300,020
MnO0,0710,0700,003

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba927,00908,0012,00
Ce90,00103,001,20
Co20,0019,500,30
Cr192,00182,002,60
Cu31,0030,000,40
Ga19,0018,600,20
La49,0053,000,80
Mo1,801,700,05
Nb8,009,900,22
Ni61,0059,600,80
Pb16,0014,100,24
Rb60,0056,000,65
Sr388,00363,502,60
Th12,5011,300,23
V90,0096,501,00
Y17,0018,000,32
Zn81,0080,300,70
Zr232,00231,803,30

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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