一种带有氢火焰离子化检测器和质谱检测器的全二维气相色谱系统及应用
By connecting a flame ionization detector and a mass spectrometer in parallel within a fully two-dimensional gas chromatography system and equipping it with a pressure regulating device, the problems of insufficient qualitative analysis by the flame ionization detector and the vacuum effect of the mass spectrometer are solved, achieving wider analytical adaptability and good separation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2023-12-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing two-dimensional gas chromatography systems, the hydrogen flame ionization detector is not suitable for qualitative analysis, and the vacuum effect after the introduction of the mass spectrometer detector leads to a decrease in separation efficiency.
A hydrogen flame ionization detector and a mass spectrometer are used in parallel, and a pressure regulating device is added to the system. The carrier gas flow and pressure are controlled by a high-frequency solenoid valve and an EPC system to ensure the stability of the detector and the separation effect.
The fully two-dimensional gas chromatography system has achieved the advantages of both quantitative and qualitative analysis, with good separation effect, stable chromatographic baseline, and normal peak shape.
Smart Images
Figure CN117723652B_ABST