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Round robin tests XRF-analysis XRF Round-robin test GeoPT5 - AMH-1, Mount Hood Andesite

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT5
Material of proficiency test:
AMH-1, Mount Hood Andesite
Study finished:
1999 - 7
Literature:
Preliminary Report - GeoPT5 Proficiency Testing Round, Geostandards Newsletter, Vol. 24, No. 1, 06/00, p. 137

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O4,1804,2080,184
MgO3,1403,1560,179
Al₂O₃17,66017,5300,375
SiO₂60,45060,3370,686
P₂O50,1710,1700,011
K₂O1,2301,2270,047
CaO6,0206,0640,223
TiO₂0,8600,8460,052
Fe₂O₃ tot.6,1306,0980,281
MnO0,0950,0940,007

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba308,00322,0024,00
Ce39,0033,004,70
Co21,0018,682,64
Cr52,0040,905,80
Cu29,0030,203,20
Ga22,0020,491,50
Ge1,101,030,20
Hf2,803,700,60
La17,0015,902,50
Mo2,801,200,40
Nb6,008,301,30
Ni34,0032,404,50
Rb22,0018,301,70
Sr529,00545,0030,50
Th4,302,600,40
V109,00106,4010,90
Y13,0016,442,60
Zn67,0066,905,50
Zr140,00146,0011,90

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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