Valve sample injection three-dimensional laboratory gas chromatograph

Abstract

The invention discloses a valve sample injection three-dimensional laboratory gas chromatograph. The valve sample injection three-dimensional laboratory gas chromatograph comprises a base, a V5000 frame and a plastic body, the base is located at the lowermost portion of the whole device, the V5000 frame is fixedly mounted above the base, the V5000 frame is an integrally formed frame, and the plastic body is fixedly mounted at the top end of the V5000 frame. The valve sample injection three-dimensional laboratory gas chromatograph is scientific and reasonable, safe and convenient use and the miniaturized chromatography volume, the laboratory space is greatly saved, the host machine integrates a chromatographic workstation into a whole, the complexity of various connecting lines and system matching installation is greatly simplified, integral design is unique, and the design concept of the traditional laboratory gas chromatograph is refreshed; and the membrane valve system integrates thedrive and the valve body, the internal space of the instrument is optimized, the structure is simplified, the problems that an existing gas chromatograph is large in size and occupies a large amountof space are solved, and the current situation that in the prior art, a gas chromatograph is not integrally designed, and a computer needs to be specially configured is also improved.

Description

technical field [0001] The invention relates to the technical field of gas chromatographic detection, in particular to a valve-injected three-dimensional laboratory gas chromatograph. Background technique [0002] Since a botanist was studying the composition of plant leaves, he found that the pigments formed a spectrum-like band of different colors in the test tube, which was called a chromatogram by later generations, and the chromatograph slowly entered the human world. In the field of vision, with a history of more than 100 years, the development of chromatographic instruments is constantly improving, and the most prominent ones are foreign brands represented by Agilent, Thermo Fisher, etc., which control many high-end products with good quality and high price. In the domestic field, the domestic PGC-80 is also advancing head-on, but the product line is far from reaching most of the coverage. At present, the domestic gas chromatograph is still in a relatively low-end pos...

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Problems solved by technology

[0002] Since a botanist was studying the composition of plant leaves, he found that the pigments formed a spectrum-like band of different colors in the test tube, which was called a chromatogram by later generations, and the chromatograph slowly entered the human world. In the field of vision, with a history of more than 100 years, the development of chromatographic instruments is constantly improving, and the most prominent ones are foreign brands represented by Agilent, Thermo Fisher, etc., which control many high-end products with good quality and high price. In the domestic field, the domestic PGC-80 is also advancing head-on, but the product line is far from reaching most of the coverage. At present, the domestic gas chromatograph is still in a relatively low-end position, and there is a serious lack of products comparable to Agilent and Shimadzu. High-end products, while gas chromatographs play an important role in the fields of national defense and military industry, petrochemical industry, environmental monitoring, biopharmaceuticals, food safety, scientific research institutions, etc., while domestic manufacturers, large and small, are basically limited to the development of low-end markets And research, this cannot meet the needs of the market, so the development of high-end gas chromatography is an important and necessary top priority in China. With the introduction of some new policies of the country, it is bound to set off a wave in the chromatography industry Upsurge, the future development space of the chromatographic industry will be broader. Based on the above, the market has a greater demand for higher technical indicators and more stable high-end gas chromatographs. Laboratory gas chromatographs are generally larger in size and take up a lot of space. It is not an overall design, and a computer needs to be specially configured, and there is no host integrated with a chromatographic workstation, which leads to the complexity of various connections and system supporting installations, and rarely uses integrated drivers and valve body membrane valve systems, which will lead to High leak rate, large dead volume, easy diffusion of samples, inaccurate data, etc., so people need a valve-injected three-dimensional laboratory gas chromatograph to solve the above problems

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