An integrated full-automatic headspace sampler and gas chromatograph combined device

By integrating the headspace sampler's valve box with the gas chromatograph, shortening the transmission pipeline, and employing a highly efficient heating method, the problems of peak broadening and high power consumption in existing technologies are solved, achieving higher analytical accuracy and energy savings.

CN224416808UActive Publication Date: 2026-06-26ZHEJIANG FULI ANALYTICAL INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FULI ANALYTICAL INSTR
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When existing headspace samplers are used independently with gas chromatographs, the excessively long connecting tubing causes the peak shape to broaden during sample transmission, affecting the accuracy of analytical results. Furthermore, the valve box heating consumes a lot of power and has a heavy heat dissipation burden.

Method used

The headspace sampler's valve box is designed as an integrated structure, placed near the gas chromatograph's injection port, and connected via a stainless steel transfer tube wound with heating wire to shorten the transfer length. Air bath heating and insulation material wrapping are used to reduce power consumption.

Benefits of technology

It improves the peak shape of gas chromatography, enhances the accuracy of analytical results, saves energy consumption, and optimizes the instrument's appearance design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated full -automatic headspace sample injector and gas chromatograph combined device, including headspace sample injector, valve box, transmission pipe and gas chromatography unit, the valve box is located in the high temperature area of gas chromatography unit one end sample injection port vicinity, the sample injection port of gas chromatography unit is connected with valve box through transmission pipe, the utility model discloses a headspace sample injector valve box split design, and the headspace sample injector valve box is placed in the high temperature area of the sample injection port vicinity of the matched gas chromatography unit, and the valve box independent heating temperature control is favorable to the rapid heating and heat preservation of valve box, is favorable to the saving of electric energy, shortens the transmission pipe length between headspace sample injector and the sample injection port of gas chromatography unit, improves chromatographic peak shape, and improves analysis result accuracy, and transmission pipe is small and subtle, and the appearance of headspace sample injector and gas chromatograph matched combination is harmonious and beautiful.
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