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Round robin tests XRF-analysis XRF Round-robin test UNICAMP - BRP-1, Basalt

Study organized by:
UNICAMP, Instituto de Geosciencas, Campinas, Brasilien
Material of proficiency test:
BRP-1, Basalt
Study finished:
2007 - 11
Literature:
Certificate of Analysis of the Reference Material BRP-1 (Basalt Ribeirao Preto)

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O2,7102,7100,040
MgO3,9003,9400,050
Al₂O₃12,34012,4000,140
SiO₂50,26050,3900,760
P₂O50,6230,6300,020  
K₂O1,5001,5200,020
CaO7,9107,9500,110
TiO₂3,9403,8100,060
Fe₂O₃ tot15,64015,5900,160
MnO0,2040,2100,006
L.O.I.0,490

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba578,00555,0014,60
Ce68,0093,302,30
Co32,0037,501,80
Cr15,0012,400,80
Cu177,00160,005,00
Ga22,0024,801,00
Hf6,008,000,30
La34,0042,601,10
Nb25,0029,101,60
Nd48,0051,901,30
Ni29,0023,401,80
Pb5,005,500,40
Rb34,0035,501,50
Sr461,00492,0011,80
V378,00391,0010,00
Y41,0042,602,20
Zn139,00142,203,10
Zr309,00310,406,30

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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