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Round robin tests XRF-analysis XRF Round-robin test GeoPT27, England - MGL-AND, Andesite

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT27
Material of proficiency test:
MGL-AND, (Andesite)
Study finished:
2010 - 8
Literature:
Preliminary Report - GeoPT27 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O4,4104,4800,071
MgO3,5603,5500,059
Al₂O₃16,78016,6900,219
SiO₂59,27059,2300,641
P₂O50,2620,2610,006
K₂O2,3702,4000,042
CaO5,5505,5800,086
TiO₂0,7170,7140,015
Fe₂O₃ tot.5,5505,4200,084
MnO0,0800,0800,002
L.O.I.*1,3001,4000,030

trace elements [µg/g]

CRBRV1sRVZ-Score
As2,402,700,20
Ba680,00673,0020,00
Ce50,0053,002,30
Co25,0019,501,00
Cr101,0095,003,80
Cu34,0041,301,90
Ga20,0021,001,10
Hf3,403,600,20
La25,0025,401,20
Nb1,003,400,20
Nd29,0026,301,30
Ni62,0062,502,70
Pb10,0018,300,90
Pr4,006,500,40
Rb33,0049,902,20
Sm3,005,100,30
Sr1125,001116,0031,10
Th7,006,200,40
U1,001,900,10
V115,00121,004,70
Y11,0012,000,10
Zn71,0070,003,00
Zr126,00148,005,60

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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