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2014 - XRF Round-robin test GeoPT35a, England - SdAR-H1, Metalliferous Sediment
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT35a
Material
SdAR-H1, (Metalliferous Sediment)
Literature
Report - GeoPT35a Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
0.980
1.102
0.022
-2.800
MgO
1.530
1.532
0.029
-0.030
Al₂O₃
11.840
11.830
0.163
0.030
SiO₂
65.450
65.450
0.700
0.000
P₂O5
0.189
0.185
0.005
0.370
K₂O
4.210
4.170
0.067
0.290
CaO
1.500
1.462
0.027
0.680
TiO₂
0.565
0.560
0.012
0.200
Fe₂O₃ tot
6.490
6.448
0.097
0.220
MnO
0.520
0.515
0.011
0.220
L.O.I.*
4.770
4.890
1.070
---
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ag
66.00
76.00
3.20
-1.56
As *
430.00
386.00
61.00
---
Ba
852.00
866.00
25.00
-0.28
C-tot. *
9,410.00
9,560.00
2,160.00
---
C-org. *
6,430.00
5,520.00
1,870.00
---
Br*
2.00
2.20
1.10
---
Cd
27.00
25.20
1.20
0.73
Ce
76.00
89.30
3.60
-1.83
Co
58.00
55.60
2.40
0.50
Cl *
127.00
89.00
61.00
---
Cr *
211.00
219.60
46.00
---
Cu
1,120.00
1,159.00
32.10
-0.61
F *
1,368.00
1,517.00
583.00
---
Ga
17.00
15.60
0.80
0.82
Hf
7.00
6.90
0.40
0.18
Hg *
9.00
7.60
1.60
---
La
40.00
44.90
2.00
-1.21
Mo
61.00
64.00
2.70
-0.55
Nb
20.00
21.90
1.10
-0.84
Nd
32.00
36.20
1.70
-1.21
Ni
225.00
230.00
8.10
-0.31
Pb
4,000.00
3,893.00
89.70
0.60
Pr
12.00
10.00
0.60
1.80
Rb
142.00
152.30
5.70
-0.90
S *
2,960.00
3,890.00
1,650.00
---
Sb *
432.00
478.00
153.00
---
Sm
6.00
6.40
0.40
-0.50
Sr
195.00
182.00
6.70
0.96
Th
8.00
17.70
0.90
-5.29
U
4.00
4.10
0.30
-0.13
V
79.00
73.00
3.10
0.95
Y
42.00
25.00
1.20
6.64
Zn
3,790.00
3,684.00
85.60
0.62
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
