< Back
rfa-ringversuch
2017 - XRF Round-robin test GeoPT 41A, England - SSCO-1, Mineralised Stream Sediment
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT41A
Material
SSCO-1, Mineralised Stream Sediment
Literature
Report - GeoPT41 Proficiency Testing Round 41A (Laborcode CRB = Z124)
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
1.780
1.800
0.033
-0.300
MgO
0.730
0.720
0.015
0.330
Al₂O₃
11.010
11.070
0.154
-0.190
SiO₂
69.420
69.420
0.734
0.000
P₂O5
0.186
0.186
0.005
0.010
S *
0.233
0.253
0.061
-0.160
K₂O
3.540
3.551
0.059
-0.090
CaO
1.540
1.539
0.029
0.020
TiO₂
0.404
0.396
0.009
0.460
Fe₂O₃tot
6.590
6.545
0.154
0.150
MnO
0.427
0.424
0.010
0.160
L.O.I. *
3.490
3.660
0.520
-0.160
TC
5,412.000
5,302.000
116.700
0.470
TOC*
3,903.000
3,254.000
984.000
0.330
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ag
3.80
3.80
0.20
0.00
Ba
775.00
779.40
22.90
-0.10
Ce
96.00
99.90
4.00
-0.48
Cl *
150.00
158.00
106.00
-0.04
Co
8.00
8.10
0.50
-0.08
Cr
16.00
16.50
0.90
-0.30
Cu
375.00
365.00
12.00
0.42
Ga
17.00
16.10
0.80
0.56
Hf
6.50
6.50
0.40
0.00
La
42.00
37.60
1.70
1.26
Mo
15.00
13.00
0.70
1.41
Nb
18.00
18.70
1.00
-0.38
Nd
33.00
31.60
1.50
0.47
Ni
11.00
9.00
0.50
1.93
Pb
921.00
917.00
26.30
0.08
Pr
9.00
8.50
0.50
0.53
Rb
128.00
126.70
4.90
0.13
Sc
5.00
6.30
0.40
-1.70
Sm
7.00
5.80
0.40
1.74
Sr
190.00
189.00
6.90
0.07
Th
12.00
11.10
0.60
0.75
U
2.00
3.30
0.20
-2.92
V
53.00
55.50
2.40
-0.51
Y
28.00
26.10
1.30
0.73
Zn
602.00
605.00
18.50
-0.08
Zr
227.00
230.00
8.10
-0.18
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
