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2006 - XRF Round-robin test GeoPT19 - MGR-N, Gabbro
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT19
Material
MGR-N, Gabbro
Literature
Preliminary Report - GeoPT19 Proficiency Testing Round
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Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
1.310
1.340
0.026
MgO
4.620
4.680
0.074
Al₂O₃
22.250
22.250
0.279
SiO₂
43.000
43.290
0.491
P₂O5
0.043
K₂O
0.090
CaO
15.500
15.290
0.203
TiO₂
0.977
0.960
0.019
Fe₂O₃ tot
11.060
10.760
0.151
MnO
0.106
0.100
0.003
L.O.I.
0.770
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
1.30
1.75
0.13
Ba
68.00
53.46
2.35
Ce
10.00
3.42
0.23
Co
38.00
35.30
165.00
Cr
49.00
39.80
1.83
Cu
590.00
594.00
18.20
Ga
21.00
19.20
1.00
Hf
0.40
0.34
0.03
Nd
8.00
2.70
0.18
Ni
20.00
19.70
1.00
Rb
3.00
Sr
2.80
0.75
0.06
Th
792.00
787.00
23.10
V
439.00
453.00
14.40
Y
6.00
4.40
0.28
Zn
88.00
93.30
3.80
Zr
7.00
10.00
0.57
Legende
CRB
Interlaboratory test
1s-RV
Z-score
*
CRB Results
Interlaboratory Test Results
Standard Deviation Interlaboratory Test
Difference between the measured value and the average value of the interlaboratory test
Value not certified