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Round robin tests XRF-analysis XRF Round-robin test GeoPT22 - MBL-1, Basalt

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT22
Material of proficiency test:
MBL-1, Basalt
Study finished:
2008 - 2
Literature:
Preliminary Report - GeoPT22 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O4,4604,3800,119
MgO6,4106,3000,231
Al₂O₃14,49014,4600,302
SiO₂51,26051,7600,515
P₂O50,8370,8460,05 
K₂O4,0604,0200,112
CaO5,5505,4300,148
TiO₂2,1502,1070,066
Fe₂O₃ tot.10,0309,8900,216
MnO0,1340,1300,005

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba780,00755,0041,00
Ce100,00103,766,00
Co42,0035,903,80
Cr241,00214,8021,70
Cu24,0032,203,70
Ga24,0022,701,80
La55,0055,903,40
Nb54,0051,304,70
Nd49,0046,603,10
Ni171,00159,3012,50
Pb17,008,601,90
Pr12,0011,900,70
Rb63,0062,903,00
Sm7,006,700,50
Sr970,00920,0039,90
Th5,006,801,30
U1,001,700,40
V108,00105,007,60
Y20,0020,101,90
Zn117,00115,479,00
Zr307,00288,0017,40

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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