▎ 摘　　要

NOVELTY - Separation column comprises: a stationary phase comprising at least 90 wt.% titanium oxide nanotubes, relative to a total weight of the stationary phase. The nanotubes have an average diameter in a range of from 5 to 200 nm. USE - Separation column for removing one or more antibiotics from a dairy product. ADVANTAGE - The separation column has graphene and/or polymeric support networks in columns, generally having only titanium oxides without silicon or iron oxides. DETAILED DESCRIPTION - Separation column comprises: a stationary phase comprising at least 90 wt.% titanium oxide nanotubes, relative to a total weight of the stationary phase, where the titanium oxide has a formula of HxNa2-xTi2O5.(H2O). The nanotubes have an average diameter in a range of from 5 to 200 nm, where x ≤ 2.