Theoretical Plates indicator

Indicates the viscosity of the eluent (in cP) at the given solvent composition and temperature.

Calculation

The eluent viscosity is calculated by the following equation, reported in Chen, H.; Horvath, C. Anal. Methods Instrum. 1993, 1, 213-222.

where
η = eluent viscosity (cP)
T = temperature (°C)
Φ = volume fraction methanol

Remarks

The eluent viscosity is useful for calculating the backpressure and the average diffusion coefficient.