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1999 - XRF Round-robin test GeoPT 4 - OU-2, Bamford Dolerite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT4
Material
OU-2, Bamford Dolerite
Literature
Geostandards Newsletter, Vol. 24, No. 1, 06/00, p. 135
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Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
2.480
2.480
0.043
MgO
5.540
5.585
0.086
Al₂O₃
13.820
13.801
0.186
SiO₂
51.090
51.095
0.586
P₂O5
0.296
0.300
0.007
SO₃
0.030
K₂O
0.980
0.990
0.020
CaO
8.900
8.994
0.129
TiO₂
2.490
2.425
0.042
Fe₂O₃ tot
13.430
13.250
0.180
MnO
0.173
0.170
0.004
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
342.00
341.10
11.30
Ce
69.00
60.20
2.60
Co
44.00
44.80
2.00
Cr
104.00
97.00
3.90
Cu
56.00
63.00
2.70
Ga
23.00
23.05
115.00
Hf
5.10
5.29
0.33
La
41.00
27.70
1.34
Mo
3.00
3.05
0.21
Nb
21.00
17.25
0.90
Ni
60.00
51.77
2.29
Pb
14.00
13.12
0.71
Rb
28.00
25.44
1.35
Sr
427.00
403.70
13.10
Th
3.60
3.02
0.20
V
344.00
339.20
11.30
Y
35.00
30.93
1.48
Zn
114.00
113.00
4.40
Zr
223.00
200.50
7.20
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
