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rfa-ringversuch
1995 - XRF Round-robin test IRMA - GSPN-2, Manganese ore
Organizer
Institute of Rock and Mineral Analysis (IRMA) of the Chinese Academy of Geological Sciences
Material
GSPN-2 (marines Sediment, Manganerz)
Literature
GEOSTANDARDS NEWSLETTERS, Vol. 19, No. 2, 1995, GEOSTANDARDS NEWSLETTERS, Vol. 22, No. 1, 1998
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Major elements [wt %]
CRB
RV
1sRV
Z-Score
Na₂O
3.100
2.520
0.303
MgO
2.900
3.010
0.120
Al₂O₃
5.370
5.090
0.280
SiO₂
16.020
15.050
0.730
P₂O5
0.490
0.570
0.060
SO₃
0.330
0.300
0.080
K₂O
1.100
1.050
0.070
CaO
2.890
2.860
0.180
TiO₂
1.540
1.320
0.070
Fe₂O₃ tot
10.420
10.490
0.590
MnO
23.300
24.290
0.770
Trace elements [µg/g]
CRB
RV
1sRV
Z-Score
As
73.00
99.00
33.00
Ba
1,900.00
1,800.00
200.00
Cd
12.00
10.00
2.00
Ce
583.00
622.00
65.00
Cl
7,700.00
7,100.00
900.00
Co
2,600.00
2,800.00
160.00
Cr
10.00
20.00
Cu
6,000.00
6,700.00
400.00
La
220.00
184.00
23.00
Mo
480.00
485.00
22.00
Nb
54.00
47.00
9.00
Ni
9,600.00
10,200.00
800.00
Pb
687.00
709.00
63.00
Rb
6.00
16.00
2.00
Sr
823.00
853.00
95.00
V
547.00
452.00
37.00
Zn
850.00
910.00
150.00
Zr
647.00
612.00
69.00
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
