Protein expression & purification techniques - overview of some common techniques & typical workflow - YouTube
Manual Purification of Histidine-Tagged Proteins using His GraviTrap™ TALON® Columns
Introduction to Affinity Chromatography | Bio-Rad
Epitope imprinting enhanced IMAC (EI-IMAC) for highly selective purification of His-tagged protein - Journal of Materials Chemistry B (RSC Publishing) DOI:10.1039/C5TB02505B