"An open tubular column is a chromatography column in which the particles of the solid stationary phase or the support coated with a liquid stationary phase are concentrated on or along the inside tube wall leaving an open, unrestricted path for the mobile phase in the middle part of the tube." . . "open tubular column" . . "PERSON:Daniel Schober" . "WEB:" . "http://msi-ontology.sourceforge.net/ontology/CHROM.owl#msi_01219" . . . "open tubular column" .