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. The method can include connecting a controlling computer to a routing unit wherein the routing unit has connections to a plurality of devices. A pair of slits is formed along an extension line of the rear end on the bottom board, so that melted solder for fixing the connector receptacle on the printed circuit board rarely diffused to a lower face of the bottom board. The stacked resistor structure, when subjected to a current flowing generally along a first axis, is characterized by a temperature profile that has first and second peaks on either side of the bond pad. More specifically, the present invention relates to one or more of the definition, extraction, delivery, and hyper-linking of clips, for example web clips.