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2019 - XRF Round-robin test GeoPT 45, England - GONV-1, Silicified Sandstone
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT45
Material
GONV-1, Silicified Sandstone
Literature
Report - GeoPT45 Proficiency Testing Round 45 (Laborcode CRB = E86)
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
MgO
0.530
0.540
0.012
-0.420
Al₂O₃
9.530
9.510
0.136
0.070
SiO₂
80.020
80.260
0.830
-0.140
P₂O5
0.092
0.092
0.003
0.000
K₂O
2.740
2.752
0.047
-0.130
CaO
0.210
0.200
0.005
0.980
TiO₂
0.565
0.566
0.012
-0.020
Fe₂O₃tot
1.980
1.960
0.035
0.280
L.O.I.
3.570
3.590
0.060
-0.200
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
180.00
177.00
6.50
0.23
Ba
1,280.00
1,302.00
35.40
-0.31
Ce
89.00
93.20
3.80
-0.56
Co
2.00
1.30
0.10
3.45
Cr
133.00
126.00
4.90
0.72
Cu
13.00
12.00
0.70
0.73
Ga
10.00
11.20
0.60
-0.95
Hf
10.00
11.75
0.60
-1.35
La
40.00
52.90
2.30
-2.76
Nb
14.00
10.70
0.60
2.75
Nd
26.00
30.60
1.50
-1.57
Ni
10.00
10.30
0.60
-0.22
Pb
10.00
8.80
0.50
1.23
Rb
83.00
90.20
3.70
-0.98
Sc
6.00
9.70
0.50
-3.33
Sr
92.00
89.00
3.60
0.37
V
100.00
101.20
4.00
-0.15
Y
22.00
20.10
1.00
0.95
Zn
22.00
21.10
1.10
0.45
Zr
415.00
436.50
14.00
-0.77
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
