Method for predicting multi-order temperature programming retention time according to nonlinear plate theory

The invention discloses a method for predicting multi-order temperature programming retention time according to a nonlinear plate theory. The method comprises the following steps of: determining the retention time of a compound to be determined at six constant temperatures, and determining virtual dead time; computing retention factors of the compound to be determined at six constant temperatures, and determining a corresponding retention factor at any jump in a column according to a cubic equation between the retention factors and a temperature relation; and computing the concentration in the mobile phase of a last column plate at any jump of the compound to be determined, and computing time needed by jumping which serves as the retention time. In the invention, the retention time can bepredicted by only optionally setting the virtual dead time, so that the prediction process is very simple and convenient; and meanwhile, the influences of temperature on entropy and enthalpy are considered, so that the method has a wide application range and high prediction accuracy.