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Round robin tests XRF-analysis XRF Round-robin test GeoPT25, England - HTB-1, Basalt

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT25
Material of proficiency test:
HTB-1, Basalt
Study finished:
2009 - 8
Literature:
Preliminary Report - GeoPT25 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O2,6202,7300,057
MgO3,9303,8900,063
Al₂O₃12,49012,4100,170
SiO₂50,25050,4200,559
P₂O50,6350,6330,014  
K₂O1,5201,5300,029
CaO7,8807,8500,115
TiO₂0,5200,5340,012
Fe₂O₃ tot15,75015,5400,206
MnO0,2210,2150,005
L.O.I.0,360------

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba572,00550,0017,00
Ce101,0093,003,70
Co54,0038,001,80
Cr9,0010,700,60
Cu162,00161,006,00
Ga28,0024,101,20
Hf6,007,900,50
La42,0040,901,90
Nb27,0029,201,40
Nd48,0051,402,30
Ni35,0032,101,10
Pr9,0011,900,70
Rb34,0035,001,70
Sm7,0011,000,60
Sn7,002,600,20
Sr475,00482,006,40
Th3,603,980,26
V385,00392,8012,80
Y37,0039,901,80
Zn131,00141,505,40
Zr293,00310,1010,50

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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