4. Conclusion
The quantitative content of Fe2O3 nanoparticles in the samples of the emulsion by solid-phase voltammetry using
the calibration curve constructed for the mass fraction of Fe2O3 nanoparticles prepared in carbon paste in the range
of 0.05-12% was assessed. The nanoparticles content in the emulsion was changed to 2-fold increase (decrease).
The proposed method is simple and does not require large amounts of reagents and labor, and may be acceptable
in any chemical laboratory, especially now, when domestic and foreign electrical equipment is launched with the
control and management of data processing (STA, TA analyzers, etc.). The proposed method can be used in
pharmaceutical research, process control in the production of nanomaterials.
Conclusion: electrochemical action of Fe2O3 nanoparticles by solid-phase voltammetry was studied; a
voltammetric method for identification and quantitative determination of solid-phase Fe2O3 nanoparticles and a
technique of their determination in real objects have been developed..