CHROMATOGRAPHIC POLYCAPILLARY COLUMN Russian patent published in 2003 - IPC

FIELD: chromatography, polycapillary chromatographic columns of high-speed chromatography, in particular. SUBSTANCE: chromatographic polycapillary column comes in the form of monolithic bar pierced by system of capillaries which internal surface is coated with layer of holding matter. Monolithic bar is U-shaped and comprises three elements. Capillaries of first and third elements are parallel to longitudinal axis of bar. Capillaries of second element positioned between first and third elements are twisted along longitudinal symmetry axis of bar and are so bent that inlet and outlet butts of column are located at distance of diameter of bend. Besides this capillaries of second element are twisted along longitudinal symmetry axis uniformly over its length through number of turns over 0.5. Bending radius of second element is more than 1.0 cm. EFFECT: development of chromatographic column in which inlet and outlet butts are at minimal distance one from another and which exhibits small overall dimensions without deterioration of its separation properties and efficiency. 3 cl, 2 dwg