_em_sample_support.id 1 _em_sample_support.film_material 'HOLEY CARBON' _em_sample_support.method . _em_sample_support.grid_material COPPER _em_sample_support.grid_mesh_size 400 _em_sample_support.grid_type MESH _em_sample_support.pretreatment 'GLOW DISCHARGE' _em_sample_support.details . _em_sample_support.citation_id 2