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Automatic sample feeding device for gas chromatograph

A gas chromatograph and automatic sampling technology, applied in the field of gas chromatograph, can solve the problems of incomplete vaporization of samples, false peaks between samples and chromatographic columns, etc., and achieve the effects of reducing consumption, accurate detection results, and reducing detection costs

Active Publication Date: 2021-10-26
南通市安特速医疗科技有限公司
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  • Abstract
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Problems solved by technology

[0003] In the prior art, the sampling system of the gas chromatograph performs best in gas samples, but for liquid and solid samples, on the one hand, it is limited by the melting point and specific heat capacity of the sample, and it is easy to cause the sample to be incompletely vaporized, resulting in a collision between the sample and the chromatographic column. False peaks appear during the reaction, and when using a gas chromatograph to detect samples, multiple detections are required to avoid sample detection errors caused by incomplete vaporization of the sample. For this reason, we propose an automatic sample injection device for gas chromatograph to solve the above problems

Method used

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  • Automatic sample feeding device for gas chromatograph
  • Automatic sample feeding device for gas chromatograph
  • Automatic sample feeding device for gas chromatograph

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0031] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0032] refer to Figure ...

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Abstract

The invention discloses an automatic sample feeding device for a gas chromatograph. The device comprises a gas storage bottle, wherein one end of the gas storage bottle is communicated with a preheating assembly, the preheating assembly is communicated with a material bin, and the material bin is communicated with a heating assembly. According to the device, by arranging the heating assembly, the carrier gas can be heated by using the heating device when the sample and the carrier gas synchronously flow by using the spiral heating pipe so as to vaporize the liquid sample and the solid sample such that the influence on the detection structure due to the incomplete conversion of the sample into the gas state is avoided; and the spiral heating pipe can improve the space utilization rate and prolong the heating time.

Description

technical field [0001] The invention relates to the technical field of gas chromatographs, in particular to a sample automatic sampling device for gas chromatographs. Background technique [0002] Gas chromatograph is an instrument for qualitative and quantitative analysis of multi-component complex mixtures by using chromatographic separation technology and detection technology. It can usually be used to analyze organic compounds that are thermally stable and have a boiling point not exceeding 500°C in soil, such as volatile organic compounds, organochlorine, organophosphorus, polycyclic aromatic hydrocarbons, phthalates, etc. There are many types of gas chromatographs with different functions, but Its basic structure is similar. A gas chromatograph generally consists of a gas path system, a sampling system, a separation system, a detection and temperature control system, and a recording system. [0003] In the prior art, the sampling system of the gas chromatograph perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/24G01N30/06
CPCG01N30/24G01N30/06
Inventor 闫峰
Owner 南通市安特速医疗科技有限公司
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