title: A simple and non-isomerizing procedure for the identification of protein-linked retinals.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D012172:Retinaldehyde / Q000032:analysis*; D014801:Vitamin A / Q000031:analogs & derivatives*
chemical_list: D014801:Vitamin A; D012172:Retinaldehyde