Device and method for on-line rapid analysis of volatile organic compound

Abstract

The invention discloses a device and method for on-line rapid analysis of a volatile organic compound. The device comprises a film sample feeding device, a film heating device, a vacuum ultraviolet light single-photon ionization source, a focusing electrode assembly, a digital linear ion trap, an ion detection device, a data collecting device, a central control unit and the like. According to the device and method for on-line rapid analysis of the volatile organic compound, the vacuum ultraviolet light single-photon ionization source is adopted, a molecular ion peak is mainly generated after sample molecules are ionized, a spectrogram is greatly simplified, and the vacuum ultraviolet light single-photon ionization source is combined with the digital linear ion trap with the second-level mass spectrum function so that the compound can be rapidly and accurately analyzed and the components of a complex sample can be rapidly analyzed and identified; in addition, a silicon rubber film structure is used without the requirement for complex sample pretreatment, the responding time is short, sample feeding is rapid, and the device and method satisfy the requirement for on-line analysis. The device and method for on-line rapid analysis of the volatile organic compound can be widely applied to the technical field of analytical instrument detection.

Description

technical field [0001] The invention relates to the technical field of analytical instrument detection, in particular to a device and method for quickly analyzing volatile organic compounds on-line. Background technique [0002] Digital linear ion trap technology is developed on the basis of traditional ion trap technology. The geometric structure of the ion trap mass analyzer has experienced the development process from the traditional three-dimensional ion trap to the linear ion trap, and the electrode shape of the ion trap also has a series of changes from hyperbolic electrodes, cylindrical electrodes to rectangular electrodes and so on. Traditional linear ion traps generally consist of hyperbolic electrodes to form a quadrupole ion trap system. [0003] In the face of different analysis environments, conventional mass spectrometers cannot meet the detection of harmful substances in special environments and occasions, such as environmental emergency detection, rapid sear...

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Problems solved by technology

[0003] In the face of different analysis environments, conventional mass spectrometers cannot meet the detection of harmful substances in special environments and occasions, such as environmental emergency detection, rapid search for pollution sources, crude oil monitoring and detection of harsh field environments, etc.

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