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2007 - XRF Round-robin test GeoPT21 - MGT-1, Granite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT21
Material
MGT-1, Granite
Literature
Preliminary Report - GeoPT21 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
3.820
3.650
0.060
MgO
0.390
0.380
0.009
Al₂O₃
14.130
14.030
0.189
SiO₂
72.250
72.350
0.760
P₂O5
0.138
0.130
0.004
K₂O
4.680
4.670
0.074
CaO
1.190
1.150
0.022
TiO₂
0.293
0.290
0.007
Fe₂O₃ tot
2.470
2.430
0.042
MnO
0.055
0.060
0.002
L.O.I.
0.490
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
2.80
2.32
0.16
Ba
342.00
344.00
11.40
Ce
66.00
63.06
2.70
Co
5.00
2.73
0.19
Cr
215.00
186.70
6.80
Ga
22.00
22.00
1.10
Hf
5.00
4.69
0.30
La
34.00
29.22
1.41
Mo
3.00
3.06
0.21
Nb
15.00
15.24
0.81
Nd
30.00
5.92
1.28
Ni
2.00
25.42
0.36
Pb
29.00
271.94
1.25
Pr
5.00
7.08
0.42
Rb
287.00
271.90
9.40
Sm
5.00
5.46
0.34
Sn
7.00
13.03
0.71
Sr
109.00
110.80
9.40
Th
19.00
19.19
0.98
U
3.00
5.43
0.34
V
14.00
14.01
0.75
Y
22.00
24.67
1.22
Zn
56.00
54.56
2.39
Zr
165.00
168.41
6.23
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
