Applicability of the critical chromatography concept to proteomics problems: I. Effect of the stationary phase and the size of the chromatographic column on the dependence of the retention time of peptides and proteins on the amino acid sequence

Resumo

A theoretical study of the effect of stationary phase parameters on the regularities of the separation of peptides and proteins using a model of critical chromatography BioLCCC and the Theoretical chromatography software created on its basis has been performed. The following problems have been discussed: mechanism of the migration of chromatographic peak along the column and its compression in gradient elution; dependence of the coefficient of protein separation on the column length; inversion of the elution order of peptides at a change of the diameter or length of the column, adsorbent nature, conditions of emergence of inversion; and anomaly of the dependence of the retention time of proteins on the adsorbent activity.