Abstract: A general reactive chromatography model including percolation, adsorption, diffusion and reversible reactions was solved by use of the spatial movement analysis and Gram Charlier expansion. Particular attention was paid to the effect of adsorption on migration and evolution of each chromatographic peak, which was inadequately considered in previous literatures. By Fourier transformation, the original model of PDEs is reduced to the ODEs of the spatial movements of concentrations. Analytical expressions for...