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2001 - XRF Round-robin test GeoPT9 - OU-6, Penrhyn Slate
Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT9
Material
OU-6, Penrhyn Slate
Literature
Preliminary Report - GeoPT9 Proficiency Testing Round
Download
Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
1.690
1.770
0.030
MgO
2.310
2.400
0.040
Al₂O₃
20.580
20.200
0.030
SiO₂
57.570
57.510
0.100
P₂O5
0.117
0.118
0.002
K₂O
3.080
3.050
0.012
CaO
0.740
0.740
0.005
TiO₂
1.010
0.998
0.004
Fe₂O₃ tot
9.030
9.001
0.033
MnO
0.284
0.284
0,001
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
17.00
13.00
0.45
Ba
491.00
477.00
4.80
Ce
73.00
74.40
1.10
Co
31.00
29.10
0.48
Cr
54.00
70.00
1.39
Cu
27.00
39.00
0.48
Ga
27.00
24.30
0.29
Hf
3.50
4.70
0.09
La
66.00
33.00
0.51
Nb
12.00
14.79
0.31
Nd
24.00
29.01
0.52
Ni
45.00
39.83
0.71
Pb
19.00
28.00
0.50
Pr
7.00
7.80
0.13
Rb
119.00
120.20
0.90
Sm
5.60
5.92
0.08
Sn
4.40
2.70
0.11
Sr
131.00
130.90
1.16
Th
9.70
11.50
0.49
Tl
0.50
0.53
0.02
U
2.30
1.96
0.02
V
127.00
129.40
1.63
Y
26.00
27.35
0.47
Zn
120.00
118.20
1.40
Zr
169.00
174.10
1.60
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
