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2011 - XRF Round-robin test GeoPT 29, England - NKT-1, Nephelinite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT29
Material
NKT-1, (Nephelinite)
Literature
Preliminary Report - GeoPT29 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
3.380
3.390
0.060
-0.070
MgO
14.200
14.190
0.190
0.030
Al₂O₃
10.090
10.050
0.140
0.130
SiO₂
37.690
37.780
0.440
-0.100
P₂O5
0.906
0.917
0.019
-0.280
K₂O
1.240
1.260
0.024
-0.370
CaO
12.990
12.990
0.180
0.010
TiO₂
3.880
3.840
0.063
0.300
Fe₂O₃ tot
13.380
13.290
0.180
0.260
MnO
0.208
0.203
0.005
0.490
L.O.I.*
1.780
1.830
0.440
---
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ag*
0.90
0.78
---
---
As*
5.00
6.10
---
---
Ba
804.00
741.00
23.10
1.45
Cd*
0.60
0.40
---
---
Ce
124.00
124.00
4.80
-0.03
Co
63.00
63.70
2.70
-0.13
Cl*
100.00
81.00
---
---
Cr
451.00
438.00
14.00
0.47
Cu
44.00
56.50
2.50
-2.54
F*
850.00
911.00
---
---
Ga
21.00
20.20
1.00
0.38
Hf
5.50
6.70
0.40
-1.53
Hg*
0.30
0.10
---
---
La
68.00
62.60
2.70
1.00
Nb
83.00
85.20
3.50
-0.32
Nd
49.00
60.50
2.60
-2.20
Ni
316.00
315.00
10.60
0.05
Pr
15.00
15.20
0.80
-0.12
Rb
21.00
31.40
1.50
-3.48
Sc
17.00
22.50
1.10
-2.46
Sm
8.00
12.80
0.70
-3.19
Sr
1,174.00
1,175.00
32.40
-0.02
U
2.10
2.30
0.20
-0.32
V
300.00
292.00
10.00
0.38
Y
26.00
29.50
1.40
-1.22
Zn
111.00
117.40
4.60
-0.70
Zr
265.00
295.00
9.90
3.70
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
