Electrophoresis

  • When an electric field is applied across an electrolyte, charged particles suspended in the electrolyte are attracted towards the electrode of opposite charge
  • The particles move with a characteristic velocity which is dependent on the strength of the electric field (measured by the instrument), the dielectric constant and the viscosity of the medium (known from literature) and the zeta potential
  • The velocity of a particle in a unit electric field is referred to as its electrophoretic mobility
  • Zeta potential is related to the electrophoretic mobility by the Henry Equation

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