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rfa-ringversuch
2013 - XRF Round-robin test 2013 - GeoPT32, England - WG-1, Woodstock Basalt
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT32
Material
WG-1, (Woodstock Basalt)
Literature
Report - GeoPT32 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
3.180
3.100
0.052
0.770
MgO
7.640
7.550
0.111
0.400
Al₂O₃
14.350
14.350
0.190
0.000
SiO₂
51.760
52.230
0.580
-0.410
P₂O5
0.293
0.291
0.007
0.150
K₂O
0.860
0.840
0.017
0.470
CaO
8.570
8.400
0.120
0.700
TiO₂
1.760
1.740
0.030
0.310
Fe₂O₃ tot
11.530
11.310
0.120
0.700
MnO
0.151
0.143
0.004
1.000
L.O.I.*
-0.260
-0.070
---
---
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As *
3.00
2.20
---
---
Ba
250.00
219.00
7.70
2.03
Ce
43.00
31.00
1.50
3.92
Co
46.00
44.60
2.00
0.35
Cl *
80.00
114.00
---
---
Cr *
221.00
229.00
---
---
Cu
61.00
56.10
2.50
1.01
F*
230.00
277.00
---
---
Hf
3.40
3.30
0.20
0.19
La
17.00
15.40
0.80
0.98
Nb
26.00
18.20
0.90
4.11
Nd
21.00
17.90
0.90
1.69
Ni
155.00
149.00
5.60
0.54
Rb
22.00
22.30
1.10
-0.11
S*
160.00
180.00
---
---
Sm
5.00
4.50
0.30
0.96
Sn
2.70
1.70
0.10
4.30
Sr
359.00
356.00
11.70
0.15
Ta
2.80
2.90
0.20
-0.28
Th
2.40
2.50
0.20
-0.26
U
1.30
0.70
0.10
5.47
V
154.00
155.00
5.80
-0.11
Y
22.00
20.80
1.10
0.56
Zn
105.00
103.00
4.10
0.22
Zr
132.00
131.00
5.00
0.13
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
