| A.C. | atomic composition (%) |
| AEM | anion exchange membrane |
| CEM | cation exchange membrane |
| CPE | constant phase element |
| DBL | diffusion boundary layer |
| ED | electrodialysis |
| EDL | electrical double layer |
| EIS | electrochemical impedance spectroscopy |
| IEC | ion exchange capacity |
| IEM | ion exchange membrane |
| FT-IR | fourier transform infrared spectroscopy |
| RED | reverse electrodialysis |
| TSP | tangential streaming potential |
| XPS | X-ray photoelectron spectroscopy |