Capillary column for use in gas chromatography by direct heating, is provided with homogeneous electroconductive layer and electroconductive polyamide layer

摘要

The capillary column (1) is directly heated on the surface of the capillary column over the electrical resistance of an electroconductive polymer layer (2). The capillary column is provided with a homogeneous electroconductive layer. The capillary column is provided with an electroconductive polyamide layer, and the electroconductive layer is provided additionally with a layer of metal.