Electrical impedance spectroscopy for determining critical micelle concentration of ionic emulsifiers

- Electrical impedance spectroscopy (EIS) was used to determine CMC of ionic emulsifiers.
- Maxwell-Wagner elements were optimized through least-squares model error minimization.
- EIS was suitable for measuring CMC of high and low conductivity mixtures.
- Both conductance and capacitance parameters from EIS were valid.
- Conventional conductometry was suitable only for low conductivity mixture.