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Round robin tests XRF-analysis XRF Round-robin test GeoPT 44A, England - CM-1, Carbonate Mudrock

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT44A
Material of proficiency test:
CM-1, Carbonate Mudrock
Study finished:
2019 - 1
Literature:
Report - GeoPT44A Proficiency Testing Round 44A (Laborcode CRB = D46)

major elements [wt %]

CRBRV1sRVZ-Score
MgO1,4101,3700,0110,710
Al₂O₃1,3401,2400,0221,520
SiO₂5,7105,7800,0891,430
P₂O50,0660,0610,0021,350
K₂O0,2300,2190,0100,100
CaO50,60050,1800,5320,380
TiO₂0,0500,0450,0021,740
Fe₂O₃tot0,3100,3600,0081,980
MnO0,0270,0240,0011,620
L.O.I. *39,83040,1600,460-0,360
TC *11,29011,2900,1700,000
CO₂*40,20039,9000,4320,290

trace elements [µg/g]

CRBRV1sRVZ-Score
Sr1024,001010,009,900,25

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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