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Table T9. Average measured values and 3σ for the major elements. (See table note.)
|
Component
|
Sample JB-3
|
Sample JA-1
|
Reference value
(100% normalized)
|
Measured value
(average)
|
Standard deviation
(3σ)
|
Relative standard deviation
(%)
|
Reference value (100% normalized)
|
Measured value
(average)
|
Standard deviation
(3σ)
|
Relative standard deviation
(%)
|
|
Na2O
|
2,720
|
2,713
|
0.106
|
1.3
|
3,867
|
3,821
|
0.155
|
1.4
|
|
MgO
|
5,170
|
5,109
|
0.085
|
0.6
|
1,581
|
1,541
|
0.097
|
2.1
|
|
Al2O3
|
17,135
|
17,173
|
0.080
|
0.2
|
15,325
|
15,300
|
0.092
|
0.2
|
|
SiO2
|
50,767
|
50,842
|
0.141
|
0.1
|
64,413
|
64,342
|
0.227
|
0.1
|
|
P2O5
|
0.293
|
0.286
|
0.014
|
1.6
|
0.166
|
0.144
|
0.012
|
2.7
|
|
K2O
|
0.777
|
0.764
|
0.020
|
0.9
|
0.775
|
0.783
|
0.034
|
1.5
|
|
CaO
|
9,753
|
9,789
|
0.049
|
0.2
|
5,739
|
5,691
|
0.031
|
0.2
|
|
TiO2
|
1,435
|
1,432
|
0.032
|
0.7
|
0.856
|
0.855
|
0.025
|
1.0
|
|
MnO
|
0.176
|
0.184
|
0.005
|
0.9
|
0.158
|
0.159
|
0.006
|
1.2
|
|
Fe2O3
|
11,775
|
11,810
|
0.065
|
0.2
|
7,119
|
7,077
|
0.062
|
0.3
|
Note: Values determined on the Supermini (Rigaku) X-ray fluorescence spectrometer from a selection of standard samples.
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