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2010 - XRF Round-robin test GeoPT27, England - MGL-AND, Andesite
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT27
Material
MGL-AND, (Andesite)
Literature
Preliminary Report - GeoPT27 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
4.410
4.480
0.071
MgO
3.560
3.550
0.059
Al₂O₃
16.780
16.690
0.219
SiO₂
59.270
59.230
0.641
P₂O5
0.262
0.261
0.006
K₂O
2.370
2.400
0.042
CaO
5.550
5.580
0.086
TiO₂
0.717
0.714
0.015
Fe₂O₃ tot.
5.550
5.420
0.084
MnO
0.080
0.080
0.002
L.O.I.*
1.300
1.400
0.030
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
2.40
2.70
0.20
Ba
680.00
673.00
20.00
Ce
50.00
53.00
2.30
Co
25.00
19.50
1.00
Cr
101.00
95.00
3.80
Cu
34.00
41.30
1.90
Ga
20.00
21.00
1.10
Hf
3.40
3.60
0.20
La
25.00
25.40
1.20
Nb
1.00
3.40
0.20
Nd
29.00
26.30
1.30
Ni
62.00
62.50
2.70
Pb
10.00
18.30
0.90
Pr
4.00
6.50
0.40
Rb
33.00
49.90
2.20
Sm
3.00
5.10
0.30
Sr
1,125.00
1,116.00
31.10
Th
7.00
6.20
0.40
U
1.00
1.90
0.10
V
115.00
121.00
4.70
Y
11.00
12.00
0.10
Zn
71.00
70.00
3.00
Zr
126.00
148.00
5.60
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
