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Round robin tests XRF-analysis XRF Round-robin test 2015 - GeoPT36, England - GSM-1, Gabbro

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT36
Material of proficiency test:
GSM-1, (Gabbro)
Study finished:
2015 - 3
Literature:
Report - GeoPT36 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O1,8701,8500,0330,300
MgO4,2304,5200,072-2,000
Al₂O₃19,88019,8200,2530,130
SiO₂45,35045,6500,514-0,320
P₂O50,0390,0400,001-0,390
K₂O0,1700,1700,004-0,450
CaO12,56012,5400,1710,070
TiO₂1,3801,3800,0260,000
Fe₂O₃ tot13,28013,2100,1790,200
MnO0,1630,1590,0040,480
L.O.I. *0,4300,4400,200---

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba83,0081,033,300,29
Co39,0039,501,80-0,14
Cr *12,0013,302,00---
Cu97,0090,403,700,90
Ga21,0020,301,000,35
Hf0,800,830,10-0,22
La12,0012,600,70-0,30
Ni16,0013,500,701,75
Pb10,0011,000,60-0,82
Sc35,0038,501,80-0,99
Sr397,00386,0012,600,44
V595,00600,905,50-0,16
Y10,009,500,500,46
Zn88,0087,703,600,10
Zr34,0027,001,302,66

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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