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2008 - XRF Round-robin test GeoPT23 - OU-9, Separation Lake Pegmatite

Organizer
International Association of Geoanalysts and Geostandards Newsletter - GeoPT23
Material
OU-9, Separation Lake Pegmatite
Literature
Preliminary Report - GeoPT23 Proficiency Testing Round
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Major elements [wt %]

CRB
RV
1sRV
Z-Score
Na₂O
3.970
4.170
0.067
MgO
0.080
---
---
Al₂O₃
12.410
12.350
0.169
SiO₂
79.510
79.500
0.823
P₂O5
0.031
0.030
0,001 
 
K₂O
1.360
1.360
0.026
CaO
0.290
0.290
0.007
TiO₂
0.058
0.057
0.002
Fe₂O₃ tot
0.730
0.740
0.015
MnO
0.108
0.110
0.003

Trace elements [µg/g]

CRB
RV
1sRV
Z-Score
Ba
16.00
9.00
0.50
Ce
14.00
7.00
6.00
Ga
59.00
56.60
2.50
Nb
137.00
155.30
5.80
Rb
2,512.00
2,501.00
61.00
Sm
2.00
3.20
0.20
Te
135.00
125.00
4.80
Th
6.00
5.10
0.30
U
3.00
4.40
0.30
Y
15.00
8.00
0.50
Zn
31.00
28.20
1.40

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