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2013 - XRF Round-robin test GeoPT 34, England - GRI-1, Granite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT34
Material
GRI-1, (Granite)
Literature
Report - GeoPT34 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
3.990
3.970
0.065
0.170
MgO
0.750
0.750
0.016
0.000
Al₂O₃
15.970
15.920
0.210
0.120
SiO₂
68.710
68.660
0.720
0.030
P₂O5
0.132
0.136
0.002
-0.480
K₂O
4.570
4.570
0.073
0.000
CaO
1.850
1.830
0.033
0.290
TiO₂
0.480
0.476
0.011
0.200
Fe₂O₃ tot
2.870
2.866
0.049
0.040
MnO
0.041
0.036
0.001
1.940
L.O.I.*
0.350
0.360
0.110
---
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
1,953.00
1,942.00
49.70
0.11
C-tot. *
1,060.00
618.00
214.00
---
Ce
155.00
167.00
6.20
-0.97
Co
3.00
4.60
0.30
-2.72
Cl *
83.00
157.00
47.00
---
Cr
16.00
19.00
1.00
-1.55
Cu
14.00
15.40
0.80
-0.83
F *
1,187.00
1,242.00
335.00
---
Ga
23.00
23.60
1.20
-0.23
Hf
7.70
8.40
0.50
-0.72
La
89.00
92.90
3.80
-0.52
Mo
4.00
2.20
0.20
5.74
Nb
10.00
12.70
2.40
-1.92
Nd
50.00
54.70
2.40
-0.97
Ni
6.00
7.10
0.40
-1.27
Pb
27.00
31.00
1.50
-1.34
Pr
14.00
17.00
0.90
-1.70
Rb
166.00
167.60
6.20
-0.13
S *
60.00
89.00
38.00
---
Sm
7.00
7.40
0.40
-0.46
Sn
7.00
2.50
0.20
12.79
Sr
456.00
466.00
14.80
-0.33
Th
20.00
24.40
1.20
-1.84
Tl
0.60
0.80
0.10
-1.58
U
1.60
2.10
0.20
-1.78
V
44.00
35.00
1.70
2.47
Zn
88.00
87.00
3.60
0.14
Zr
330.00
330.50
11.00
-0.02
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
