Separation of alkyl phenyl ketones using monolithic poly(glycerol dimethacrylate) capillary column prepared with ultra high molecular weight polystyrene/chlorobenzene porogen. Conditions: Column 400 mm × 200 µm I.D.; mobile phase 60:40 methanol-water; flow rate 2.5 µL/min. Peaks: thiourea (1), acetophenone (2), ethyl phenyl ketone (3), propyl phenyl ketone (4), butyl phenyl ketone (5), amyl phenyl ketone (6), hexyl phenyl ketone (7). Inlay SEM micrograph shows morphology of the monolith. Adapted from ref. [39] with permission.