title: A method of ceaning platinum apertures for electron lenses by surface polishingand sonication.
mesh_terms: D007909:Lenses; D008722:Methods; D008854:Microscopy, Electron / Q000295:instrumentation*; D009821:Oils; D010984:Platinum; D014732:Vibration
chemical_list: D009821:Oils; D010984:Platinum