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Round robin tests XRF-analysis XRF Round-robin test GeoPT 43, England - ADS-1, Dolerite

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT43
Material of proficiency test:
ADS-1, Dolerite
Study finished:
2018 - 6
Literature:
Report - GeoPT43 Proficiency Testing Round 43 (Laborcode CRB = B100)

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O2,4502,4700,031-0,230
MgO5,5605,5900,150-0,410
Al₂O₃13,73013,7400,187-0,030
SiO₂51,02051,0100,4360,010
P₂O50,2960,3000,012-0,280
K₂O0,9900,9990,028-0,240
CaO9,0308,9700,1660,230
TiO₂2,4302,4300,0490,000
Fe₂O₃tot13,29013,2200,2570,200
MnO0,1730,1710,0050,260

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba359,00341,6022,700,76
Ce40,0059,503,90-3,79
Co52,0044,604,101,82
Cr118,0091,8012,203,52
Cu83,0064,305,703,40
Ga22,0021,901,700,05
Hf4,505,100,30-0,94
La30,0026,902,201,17
Nb15,0017,401,50-1,34
Nd29,0032,802,00-1,21
Ni54,0052,804,900,27
Pr8,007,800,400,27
Rb22,0025,301,50-1,32
Sc28,0027,602,400,17
Sr409,00402,0015,700,27
V327,00333,0019,90-0,27
Y30,0030,002,200,00
Zn135,00113,009,802,48
Zr210,00199,0010,500,77

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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