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Round robin tests XRF-analysis XRF Round-robin test GeoPT30, England - CG-2, Syenit

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT30
Material of proficiency test:
CG-2, (Syenite)
Study finished:
2012 - 2
Literature:
Report - GeoPT30 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O5,8805,9200,0900,-00
MgO0,3800,3900,009-0,560
Al₂O₃18,81018,7500,2400,120
SiO₂59,65059,4900,6400,120
P₂O50,0440,0450,001-0,350
K₂O5,8105,7600,0880,280
CaO2,1802,1500,0380,390
TiO₂0,6300,6240,0130,210
Fe₂O₃ tot4,0204,0300,065-0,090
MnO0,1640,1600,0040,530
L.O.I.*2,1502,3100,040-1,960

trace elements [µg/g]

CRBRV1sRVZ-Score
As*12,007,70------ 
Ba693,00684,0020,500,22
Cd*0,900,60------ 
Ce242,00252,008,80-0,59
Cl*110,0090,00------
Co4,002,800,203,31
Cr22,0018,000,902,15
F*6430,006209,00------ 
Ga31,0030,001,400,35
Hf17,0018,600,96-0,83
La145,00145,305,50-0,03
Nb153,00163,806,10-0,89
Nd63,0068,802,90-1,00
Ni83,0077,803,200,80
Pb15,0016,000,80-0,56
Pr22,0023,501,20-0,65
Rb243,00248,908,70-0,34
S*110,00160,00------ 
Sm11,009,700,601,20
Sn6,004,000,303,79
Sr327,00303,0010,201,19
Th23,0032,301,50-3,03
U4,008,400,50-4,51
V19,0023,001,10-1,74
Y43,0040,001,800,82
Zn54,0061,602,70-1,44
Zr814,00838,509,90-0,50

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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