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2015 - XRF Round-robin test 2015 - GeoPT36, England - GSM-1, Gabbro
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT36
Material
GSM-1, (Gabbro)
Literature
Report - GeoPT36 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
1.870
1.850
0.033
0.300
MgO
4.230
4.520
0.072
-2.000
Al₂O₃
19.880
19.820
0.253
0.130
SiO₂
45.350
45.650
0.514
-0.320
P₂O5
0.039
0.040
0.001
-0.390
K₂O
0.170
0.170
0.004
-0.450
CaO
12.560
12.540
0.171
0.070
TiO₂
1.380
1.380
0.026
0.000
Fe₂O₃ tot
13.280
13.210
0.179
0.200
MnO
0.163
0.159
0.004
0.480
L.O.I. *
0.430
0.440
0.200
---
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
83.00
81.03
3.30
0.29
Co
39.00
39.50
1.80
-0.14
Cr *
12.00
13.30
2.00
---
Cu
97.00
90.40
3.70
0.90
Ga
21.00
20.30
1.00
0.35
Hf
0.80
0.83
0.10
-0.22
La
12.00
12.60
0.70
-0.30
Ni
16.00
13.50
0.70
1.75
Pb
10.00
11.00
0.60
-0.82
Sc
35.00
38.50
1.80
-0.99
Sr
397.00
386.00
12.60
0.44
V
595.00
600.90
5.50
-0.16
Y
10.00
9.50
0.50
0.46
Zn
88.00
87.70
3.60
0.10
Zr
34.00
27.00
1.30
2.66
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
