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Oxides vs. elemental concentrations
Thermo Scientific
NITON XL3 Analyzer User’s Guide
1-101
Oxides vs. elemental
concentrations
Labs and other XRF instruments often report data as oxides. We can only
report data as elemental concentration. Therefore, oxide data must be
converted to elemental concentration for comparison with NITON results
using the conversion factors and equation below. This factor can be
multiplied by oxide concentration to convert to elemental.
Formula
Conc. (metal) = Conc. (oxide) * Mol.Wt. (metal)/Mol.Wt. (compound).
Table 1-1. Oxide Conversion
Oxire
Conveersion Factor
MgO
0.603
Al2O3
0.529
SiO2
0.467
SO3
0.400
K2O
0.825
CaO
0.715
TiO2
0.5995
V2O5
0.5602
Cr2O3
0.6842
Mn3O4
0.7203
MnO
0.7745
Fe2O3
0.6994
FeO
0.7773
Co3O4
0.7342
NiO
0.7858
CuO
0.7988
ZnO
0.8034
PbO
0.9283
Fe2O3
0.6994
Bi2O3
0.8970
ZrO2
0.7403
MoO3
0.6665
WO3
0.7930
Ta2O5
0.8190
Nb2O5
0.6990
SnO2
0.7876
Summary of Contents for NITON XL3t 500
Page 1: ...NITON XL3t 500 Analyzer User s Guide Version 6 5 ...
Page 2: ......
Page 22: ...Applications Live Spectrum Feed 1 8 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Page 40: ...The Measurement Screen 1 26 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Page 160: ...Entering Data with a Barcode reader 2 32 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Page 200: ...Appendix F Appendices xviii NITON XL3 Analyzer User s Guide Thermo Scientific ...