Polycapillary chromatographic column and method of its manufacturing

Abstract

Polycapillary chromatographic column contains a set of parallel channels isolated from each other, walls of the channels on the inside are covered with sorbent, and are joined with walls of adjacent channels on the outside by fusing. Feature of a column is that it is produced as set of modules of a various level, thus the module of the lowest level represents hexagonally packed and having in cross-section shape of a correct hexagon set of the channels which are produced by joint drawing of a bundle of monocapillaries in the softened condition. The module of each higher level represents hexagonally packed and having in cross-section shape of a correct hexagon set of modules of the previous level, growing out by their joint drawing in the softened condition. All modules of the highest level (the modules are made in shells 2 on the drawing) are grouped in the uniform hexagonally packed structure (on the drawing it is surrounded with an external protective shell 3), produced by their joint drawing in the softened condition. The method of columns manufacturing consists in realization of several stages drawing of blanks packages, each of which is drawing result at the previous stage, and cuttings produced at drawing items on a part of the specified length—blanks. The micrometer and submicrometer size of channels are achieved at their number equal 1 million in order of magnitude with small dispersion of the channel diameters.

Dependencies are inferred from the claim text.