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2001 - XRF Round-robin test GeoPT8 - OU-4, Microdiorite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT8
Material
OU-4, Microdiorite
Literature
Preliminary Report - GeoPT8 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
3.560
3.610
0.060
MgO
2.270
2.300
0.041
Al₂O₃
14.930
14.830
0.200
SiO₂
63.400
63.340
0.680
P₂O5
0.177
0.173
0.005
SO₃
0.020
K₂O
2.700
2.700
0.047
CaO
4.490
4.480
0.072
TiO₂
0.791
0.077
0.016
Fe₂O₃ tot.
5.820
5.860
0.090
MnO
0.140
0.140
0.004
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
355.00
360.10
12.00
Ce
53.00
55.70
2.40
Co
16.00
13.50
0.70
Cr
56.00
54.70
2.40
Cu
26.00
27.30
1.30
Ga
18.00
17.40
0.90
Hf
4.80
5.54
0.34
La
32.00
25.00
1.20
Nb
11.00
12.80
0.07
Nd
27.00
27.90
1.35
Ni
25.00
21.00
0.76
Pb
18.00
14.10
0.76
Pr
9.00
6.85
0.41
Rb
102.00
98.50
3.90
Sr
106.00
99.90
4.00
Th
9.00
8.42
0.49
V
79.00
82.70
3.40
Y
47.00
47.10
2.10
Zn
71.00
69.50
2.90
Zr
197.00
195.10
7.10
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
