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rfa-ringversuch
1999 - XRF Round-robin test GeoPT5 - AMH-1, Mount Hood Andesite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT5
Material
AMH-1, Mount Hood Andesite
Literature
Preliminary Report - GeoPT5 Proficiency Testing Round, Geostandards Newsletter, Vol. 24, No. 1, 06/00, p. 137
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Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
4.180
4.208
0.184
MgO
3.140
3.156
0.179
Al₂O₃
17.660
17.530
0.375
SiO₂
60.450
60.337
0.686
P₂O5
0.171
0.170
0.011
K₂O
1.230
1.227
0.047
CaO
6.020
6.064
0.223
TiO₂
0.860
0.846
0.052
Fe₂O₃ tot.
6.130
6.098
0.281
MnO
0.095
0.094
0.007
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
308.00
322.00
24.00
Ce
39.00
33.00
4.70
Co
21.00
18.68
2.64
Cr
52.00
40.90
5.80
Cu
29.00
30.20
3.20
Ga
22.00
20.49
1.50
Ge
1.10
1.03
0.20
Hf
2.80
3.70
0.60
La
17.00
15.90
2.50
Mo
2.80
1.20
0.40
Nb
6.00
8.30
1.30
Ni
34.00
32.40
4.50
Rb
22.00
18.30
1.70
Sr
529.00
545.00
30.50
Th
4.30
2.60
0.40
V
109.00
106.40
10.90
Y
13.00
16.44
2.60
Zn
67.00
66.90
5.50
Zr
140.00
146.00
11.90
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
