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rfa-ringversuch
1993 - XRF Round-robin test - IWG - ZW-C, Zinnwaldite
Organizer
International Workinggroup Geostandards (IWG) of the Association Nationale de la Recherche Technique, Paris
Material
Zinnwaldit ZW-C (Lithiumglimmer)
Literature
GEOSTANDARDS NEWSLETTERS, Vol. 18, No. 1, 1994
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Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
0.270
0.330
MgO
0.170
0.160
Al₂O₃
18.330
18.450
SiO₂
52.970
54.00
P₂O5
0.020
0.025
SO₃
0.046
0.045
K₂O
7.750
7.720
CaO
0.360
0.370
TiO₂
0.043
0.050
Fe₂O₃ tot
9.280
9.460
MnO
0.746
0.750
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
Ba
112.00
52.00
Cd
1.30
1.50
Ce
74.00
97.00
Cl
43.00
30.00
Co
8.00
2.00
Cr
47.00
56.00
Cu
44.00
39.00
F
65,900.00
54,500.00
Ga
104.00
99.00
La
32.00
30.00
Ni
12.00
11.00
Pb
107.00
80.00
Rb
8,458.00
8,500.00
Sr
18.00
17.00
U
24.00
20.00
V
4.00
6.00
W
321.00
320.00
Y
61.00
33.00
Zn
1,029.00
1,050.00
Zr
39.00
82.00
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
