Simona Felletti

The occurrence of convex-upward van Deemter curves is rare but not unusual in chiral liquid chromatography. In this work, this behaviour, experimentally observed for the more retained enantiomer of a chiral sulfoxide on a polysaccharide-based CSP, is explained.

The current challenges and future perspectives of the purification of cannabinoids from cannabis extracts are presented in this review article.

HPLC is emerging as the preferred analytical method for potency testing of cannabinoids, but fundamental work is needed to solve critical issues and contribute to advancing knowledge.

We explore the impact of two different stationary phases and ion-pair reagents on the retention behavior of a therapeutic peptide using reversed-phase liquid chromatography. This information is of fundamental importance for the development of reliable, selective, and fast analytical methods able to separate and identify the target peptide.

Single-column (batch) chromatography, involving two or more successive single-column (batch) chromatographic steps, is a standard approach for purifying biopharmaceuticals. Step one, known as the capture step, is used to remove product-related impurities, and step two, the polishing step, is used to remove product-related impurities. Here we present and illustrate the advantages of continuous chromatography for these separations: capture simulated moving bed (captureSMB) for the capture step and multicolumn countercurrent solvent gradient purification (MCSGP) for polishing.