Gas chromatograph for detecting alcohols and detection method thereof
A gas chromatograph and a chromatograph technology, applied to the gas chromatograph for detecting alcohols and its detection field, can solve the problems of fast trap consumption, high replacement frequency, and long replacement time, and achieve accurate detection results and improved Accuracy, the effect of improving the degree of purification
Active Publication Date: 2021-04-16
浙江必利夫检测科技有限公司
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Problems solved by technology
[0004] In view of the above-mentioned related technologies, the inventor believes that when the number of samples to be detected is large and the frequency is relatively frequent, the trap is consumed quickly and the frequency of replacement by personnel is also high. The trap in the traditional gas chromatograph The trap can only be manually disassembled and replaced by personnel, and it takes a long time to replace it, which is inconvenient and easily affects the efficiency of sample detection.
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[0040] The following is attached Figure 1-6 The application is described in further detail.
[0041] The embodiment of the present application discloses a gas chromatograph for detecting alcohols. refer to figure 1 , a gas chromatograph for detecting alcohols, comprising a chromatograph body 1, the chromatograph body 1 is connected with a gas source tank 2, the gas stored in the gas source tank 2 is nitrogen, and the chromatograph body 1 is provided with a gas source Tank 2 is connected to the intake passage 11. The gas inlet channel 11 is used to communicate with the gasification chamber and the chromatographic column in the chromatograph, and a trap 33 is arranged in the chromatograph body 1 .
[0042] refer to figure 2 with image 3 The chromatograph body 1 is rotatably connected with a rotary column 3 for separating the intake channel 11, the direction of the rotary axis of the rotary column 3 is along the vertical direction, and the chromatographic instrument body ...
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The invention relates to a gas chromatograph for detecting alcohols and detection method thereof. The gas chromatograph comprises a chromatograph body, the chromatograph body is provided with a gas source tank, a trapping trap and a gas inlet channel, the chromatograph body is rotatably connected with a rotary column, the rotary column is provided with a connecting channel, the chromatograph body is provided with a driving motor, the rotary column is provided with a rotating gear, and the driving motor is provided with a driving gear. A material changing channel is formed in the abutting wall, a material changing table is arranged on the chromatograph body, an elastic sealing gasket is arranged on the bottom face of the rotary column, a sealing ring groove is formed in the rotary column, a sliding sleeve is coaxially installed on the inner wall of the sealing ring groove, an adjusting hole is formed in the side wall of the rotary column, and a telescopic rod is arranged on the chromatograph body. By arranging the rotary column and a plurality of mounting grooves, personnel can replace the trapping trap conveniently, the purification degree of a gas source is improved, and the detection accuracy is improved; by arranging the sliding cylinder, the elastic sealing gasket and the telescopic rod, the sealing performance of the rotating column and the abutting wall is further improved, an air source is not prone to leakage, the amount of the air source can be accurately recorded, and the detection result is more accurate.
Description
technical field [0001] The application relates to the technical field of detection, in particular to a gas chromatograph for detecting alcohols and a detection method thereof. Background technique [0002] A gas chromatograph is a chromatographic analysis instrument that uses gas as a mobile phase. Its principle is mainly to use the differences in the boiling point, polarity and adsorption properties of substances to achieve the separation of mixtures. The gas chromatograph vaporizes the analysis sample in the injection port, and is carried into the chromatographic column by the carrier gas, and passes through the chromatographic column with different retention properties for the components in the mixture to be detected, so that the components are separated, and then introduced into the detector in sequence, so as to The detection signals of each component were obtained. According to the order of importing into the detector, after comparison, the components can be distingu...
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IPC IPC(8): G01N30/02G01N30/06G01N30/18
Inventor 周文喜叶松
Owner 浙江必利夫检测科技有限公司