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Round robin tests XRF-analysis XRF Round-robin test 2013 - GeoPT32, England - WG-1, Woodstock Basalt

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT32
Material of proficiency test:
WG-1, (Woodstock Basalt)
Study finished:
2013 - 1
Literature:
Report - GeoPT32 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O3,1803,1000,0520,770
MgO7,6407,5500,1110,400
Al₂O₃14,35014,3500,1900,000
SiO₂51,76052,2300,580-0,410
P₂O50,2930,2910,0070,150
K₂O0,8600,8400,0170,470
CaO8,5708,4000,1200,700
TiO₂1,7601,7400,0300,310
Fe₂O₃ tot11,53011,3100,1200,700
MnO0,1510,1430,0041,000
L.O.I.*-0,260-0,070------

trace elements [µg/g]

CRBRV1sRVZ-Score
As *3,002,20------
Ba250,00219,007,702,03
Ce43,0031,001,503,92
Co46,0044,602,000,35
Cl *80,00114,00------
Cr *221,00229,00------
Cu61,0056,102,501,01
F*230,00277,00------
Hf3,403,300,200,19
La17,0015,400,800,98
Nb26,0018,200,904,11
Nd21,0017,900,901,69
Ni155,00149,005,600,54
Rb22,0022,301,10-0,11
S*160,00180,00------
Sm5,004,500,300,96
Sn2,701,700,104,30
Sr359,00356,0011,700,15
Ta2,802,900,20-0,28
Th2,402,500,20-0,26
U1,300,700,105,47
V154,00155,005,80-0,11
Y22,0020,801,100,56
Zn105,00103,004,100,22
Zr132,00131,005,000,13

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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