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Round robin tests XRF-analysis XRF Round-robin test GeoPT 44, England - ShCX-1, Calcareous Shale

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT44
Material of proficiency test:
ShCX-1, Calcareous Shale
Study finished:
2019 - 1
Literature:
Report - GeoPT44 Proficiency Testing Round 44 (Laborcode CRB = C85)

major elements [wt %]

CRBRV1sRVZ-Score
MgO0,5600,4900,0113,210
Al₂O₃1,6401,5600,0291,460
SiO₂7,7707,8300,115-0,240
P₂O50,0680,0610,0022,030
K₂O0,4700,4600,0100,480
CaO48,10047,6000,5320,470
TiO₂0,0860,0800,0021,280
Fe₂O₃tot0,9500,9550,020-0,140
MnO0,0270,0230,0012,460
L.O.I. *39,93040,1200,460-0,210
TC *12,40012,4000,1700,000
CO₂*37,20037,2000,4320,000

trace elements [µg/g]

CRBRV1sRVZ-Score
Sr298,00290,009,900,42
V75,0060,002,602,89
Zn187,00193,007,00-0,43

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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