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2003 - XRF Round-robin test GeoPT13 - Loess
Organizer
nternational Association of Geoanalysts and Geostandards Newsletter - GeoPT13
Material
Loess
Literature
Preliminary Report - GeoPT13 Proficiency Testing Round
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
1.160
1.058
0.021
---
MgO
2.950
2.900
0.049
---
Al₂O₃
6.120
6.200
0.094
---
SiO₂
53.410
53.240
0.560
---
P₂O5
0.145
0.130
0.004
---
K₂O
1.360
1.300
0.025
---
CaO
16.650
16.310
0.210
---
TiO₂
0.437
0.423
0.010
---
Fe₂O₃ tot
2.130
2.100
0.038
---
MnO
0.070
0.064
0.002
---
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
230.00
201.00
7.21
---
Ce
47.00
53.00
2.32
---
Co
10.00
5.95
0.36
---
Cr
112.00
105.70
4.20
---
Cu
12.00
11.31
0.63
---
Ga
5.80
7.08
0.42
---
Hf
8.00
9.10
0.52
---
Nb
7.50
8.60
0.10
---
Ni
23.00
23.30
1.20
---
Pb
12.00
11.30
0.63
---
Rb
53.00
51.20
2.33
---
Sr
304.00
279.00
9.50
---
V
46.00
37.60
2.45
---
Y
47.00
47.10
1.74
---
Zn
36.00
34.40
1.60
---
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