1. What is Electrophoretic Mobility?

Electrophoretic Mobility is defined as the ratio of electrophoretic (drift) velocity to the electric field strength at the location where the velocity is measured. It is a key parameter in electrophoresis techniques used to separate and analyze charged particles.

2. How Does the Calculator Work?

The calculator uses the electrophoretic mobility equation:

Where:

• \( \mu_e \) — Electrophoretic Mobility (m²/V·s)
• \( \nu_d \) — Drift Velocity of Dispersed Particle (m/s)
• \( E \) — Electric Field Intensity (V/m)

Explanation: The equation calculates how quickly charged particles move through a medium under the influence of an electric field.

3. Importance of Electrophoretic Mobility Calculation

Details: Electrophoretic mobility is crucial for understanding particle behavior in electric fields, designing electrophoresis separation techniques, and analyzing colloidal systems and biological molecules.

4. Using the Calculator

Tips: Enter drift velocity in m/s and electric field intensity in V/m. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect electrophoretic mobility?
A: Mobility depends on particle charge, size, shape, temperature, and the properties of the surrounding medium.

Q2: What are typical values of electrophoretic mobility?
A: Mobility values typically range from 10⁻⁸ to 10⁻⁷ m²/V·s for most colloidal particles and biological molecules.

Q3: How is electrophoretic mobility measured experimentally?
A: It is typically measured using electrophoresis techniques where particle movement is observed under a known electric field.

Q4: What's the difference between electrophoretic and electroosmotic mobility?
A: Electrophoretic mobility refers to charged particle movement, while electroosmotic mobility refers to fluid movement past a stationary charged surface.

Q5: Can this calculator be used for all types of particles?
A: The basic formula applies to all charged particles, but specific applications may require additional considerations for complex systems.