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Round robin tests XRF-analysis XRF Round-robin test GeoPT 46A, IAG - POLC-1, Phosphate Rock

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT 46A
Material of proficiency test:
POLC-1, Phosphate Rock
Study finished:
2020 - 2
Literature:
Report - GeoPT 46AProficiency Testing Round 46 (Laborcode CRB = F90)

major elements [wt %]

CRBRV1sRVZ-Score
MgO1,1501,1000,0221,150
Al₂O₃2,3402,3800,040-0,500
SiO₂13,60013,3700,1810,640
P₂O526,70026,5800,3200,180
K₂O0,1100,1180,003-1,230
CaO42,00040,9100,4681,160
TiO₂0,4900,4900,0110,000
Fe₂O₃tot6,0005,7960,0891,150
L.O.I. *5,9105,9100,0900,000
F *1,6401,9900,760-0,230

trace elements [µg/g]

CRBRV1sRVZ-Score

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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