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2012 - XRF Round-robin test GeoPT30A, England - ML-2, Impure Limestone
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT30A
Material
ML-2, (Impure Limestone)
Literature
Report - GeoPT30A Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
MgO
1.360
1.390
0.026
-0.520
Al₂O₃
0.430
0.450
0.010
-0.790
SiO₂
2.790
2.860
0.050
-0.750
P₂O5
0.045
0.047
-0.660
K₂O
0.010
0.011
0.003
-1.120
CaO
52.830
52.500
0.578
0.290
TiO₂*
0.020
0.021
---
---
Fe₂O₃ tot
0.120
0.140
0.004
-2.660
MnO
0.016
0.023
0.001
-4.130
L.O.I.*
42.130
41.890
0.478
0.250
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
57.00
28.00
1.40
10.80
Ce
1.80
2.70
0.20
-2.50
Cr
12.00
6.20
0.90
---
F*
430.00
469.00
---
---
Ga
0.90
0.60
0.10
1.71
Hf*
1.10
1.10
---
---
Ni*
7.00
7.70
---
---
Sr
1,023.00
1,032.00
10.20
-0.15
S*
44.00
59.00
---
---
V
7.00
3.00
0.20
9.00
Y
4.00
2.10
0.20
---
Zn*
3.00
5.30
---
---
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
