Liquid Chromatography

Résumé du livre

This chapter describes rivalling operating modes applied industrially in preparative chromatography. After recapitulating the basic features of the “workhorse” and reference in the field, namely, isocratic batch elution, at first, more-sophisticated concepts are presented that offer additional degrees of freedom but maintain the discontinuous character of the separation process. Subsequently, process options are described that possess the potential to perform the separations continuously. Hereby, mainly the most successful multicolumn concepts are explained, which are based on realizing highly efficient countercurrent transport processes. Finally, the important aspect is addressedL how different process alternatives can be evaluated and compared quantitatively.