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2012 - XRF Round-robin test GeoPT30, England - CG-2, Syenit
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT30
Material
CG-2, (Syenite)
Literature
Report - GeoPT30 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
5.880
5.920
0.090
0,-0,23
MgO
0.380
0.390
0.009
-0.560
Al₂O₃
18.810
18.750
0.240
0.120
SiO₂
59.650
59.490
0.640
0.120
P₂O5
0.044
0.045
0.001
-0.350
K₂O
5.810
5.760
0.088
0.280
CaO
2.180
2.150
0.038
0.390
TiO₂
0.630
0.624
0.013
0.210
Fe₂O₃ tot
4.020
4.030
0.065
-0.090
MnO
0.164
0.160
0.004
0.530
L.O.I.*
2.150
2.310
0.040
-1.960
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As*
12.00
7.70
---
---
Ba
693.00
684.00
20.50
0.22
Cd*
0.90
0.60
---
---
Ce
242.00
252.00
8.80
-0.59
Cl*
110.00
90.00
---
---
Co
4.00
2.80
0.20
3.31
Cr
22.00
18.00
0.90
2.15
F*
6,430.00
6,209.00
---
---
Ga
31.00
30.00
1.40
0.35
Hf
17.00
18.60
0.96
-0.83
La
145.00
145.30
5.50
-0.03
Nb
153.00
163.80
6.10
-0.89
Nd
63.00
68.80
2.90
-1.00
Ni
83.00
77.80
3.20
0.80
Pb
15.00
16.00
0.80
-0.56
Pr
22.00
23.50
1.20
-0.65
Rb
243.00
248.90
8.70
-0.34
S*
110.00
160.00
---
---
Sm
11.00
9.70
0.60
1.20
Sn
6.00
4.00
0.30
3.79
Sr
327.00
303.00
10.20
1.19
Th
23.00
32.30
1.50
-3.03
U
4.00
8.40
0.50
-4.51
V
19.00
23.00
1.10
-1.74
Y
43.00
40.00
1.80
0.82
Zn
54.00
61.60
2.70
-1.44
Zr
814.00
838.50
9.90
-0.50
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
