This is the 41st volume in the series Advances in Chromatography. The papers in this volume: take advantage of the properties of electroosmotic flow to explore capillary electrochromatography as an alternative to HPLC for nonvolatile analytes; analyze advances in biomembrane chromatography using reverse-phase HPLC for protein purification and biophysical studies of peptides and proteins at lipid-like surfaces; focus on trace metal determination and speciation performed by liquid chromatography methods; and more.