Distributing plate of gas chromatograph electron capture detector

• Main Author: ZHANG LINGJIA
• Format: Patent
• Language: English
• Published: 03.06.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model belongs to the technical field of analyzing and testing instruments, and relates to the structural design of a distributing plate of a gas chromatograph electron capture detector. According to the distributing plate of the gas chromatograph electron capture detector, sample gas can be made not to make contact with an anode, so that it is guaranteed that the anode of the detector is not polluted, the sensitivity, the stability and the service life of the detector are guaranteed, troublesome cleaning caused by pollution is avoided, and the distributing plate is simple in structure, easy to manufacture and convenient to mount. A metal material structure is adopted and is an H-shaped cylinder with a waist in the middle, and a through hole used for mounting the anode is formed in the circle center of the upper circular end face of the metal material structure. Four small holes which are communicated with the H-shaped waist and are used for exhausting waste gas are evenly distributed around the through hole in the lower circular end face of the metal material structure, and a positioning semicircular groove is formed between one pair of small holes close to the lower edge of the H-shaped cylinder. A cross groove which is connected with anode sweep gas is formed in the upper circular end face in the same direction as the semicircular groove.