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Round robin tests XRF-analysis XRF Round-robin test GeoPT21 - MGT-1, Granite

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT21
Material of proficiency test:
MGT-1, Granite
Study finished:
2007 - 8
Literature:
Preliminary Report - GeoPT21 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O3,8203,6500,060
MgO0,3900,3800,009
Al₂O₃14,13014,0300,189
SiO₂72,25072,3500,760
P₂O50,1380,1300,004
K₂O4,6804,6700,074
CaO1,1901,1500,022
TiO₂0,2930,2900,007
Fe₂O₃ tot2,4702,4300,042
MnO0,0550,0600,002
L.O.I.0,490

trace elements [µg/g]

CRBRV1sRVZ-Score
As2,802,320,16
Ba342,00344,0011,40
Ce66,0063,062,70
Co5,002,730,19
Cr215,00186,706,80
Ga22,0022,001,10
Hf5,004,690,30
La34,0029,221,41
Mo3,003,060,21
Nb15,0015,240,81
Nd30,005,921,28
Ni2,0025,420,36
Pb29,00271,941,25
Pr5,007,080,42
Rb287,00271,909,40
Sm5,005,460,34
Sn7,0013,030,71
Sr109,00110,809,40
Th19,0019,190,98
U3,005,430,34
V14,0014,010,75
Y22,0024,671,22
Zn56,0054,562,39
Zr165,00168,416,23

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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