Capillary tube splitter plate

The utility model provides a capillary tube splitter plate for a gas chromatograph, and belongs to the technical field of analyzing and testing instruments. A circular stainless steel plate with the thickness being 2 mm and the outer diameter phi being 11 mm is adopted, a circular splitter groove with the depth being 0.5 mm and a crossed splitter groove with the depth being 0.5 mm are formed in the circular stainless steel plate, the two grooves are communicated, and therefore split gas can pass through smoothly. A circular hole with the diameter phi being 1 mm is formed in the center of the circular stainless steel plate, and a horn opening with the surface caliber phi being 2 mm and the depth being 1 mm is formed in the position corresponding to the center circular hole on the lower surface of the circular stainless steel plate so that a capillary tube chromatographic column can be smoothly arranged. The upper surface of the circular stainless steel plate is polished to be a mirror face and is subjected to gold plating, and therefore suction of split samples is avoided. Due to the fact that the splitter plate is thin and is only provided with a shallow inner hole, the phenomenon that the samples remain in the inner hole after splitting is avoided. The capillary tube splitter plate has the advantages of eliminating ghost peaks caused by the splitting structure of a gas chromatograph capillary tube vaporizing chamber, and being simple in structure.