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

A rapid analysis technology for volatile organic compounds, applied in measuring devices, analyzing materials, and analyzing materials through electromagnetic means, can solve problems such as unsatisfactory detection of harmful substances, and achieve the effects of simple structure, reduced losses, and simplified spectra

Inactive Publication Date: 2014-04-16
KUSN HEXIN MASS PECTRUM TECH +1
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  • Abstract
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  • Application Information

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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 a

Method used

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

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[0026] The specific embodiments of the present invention will be further described below in conjunction with the drawings:

[0027] Reference figure 1 , A specific embodiment of the present invention, a device for online rapid analysis of volatile organic compounds, including a membrane sampling device 1, a membrane heating device 2 is provided outside the membrane sampling device 1, and the membrane heating device 2 is provided There is a gas inlet 3 and a gas outlet 4. A vacuum ultraviolet light single photon ionization source 5 is arranged downstream of the membrane sampling device 1, and a focusing electrode group 6 is arranged downstream of the vacuum ultraviolet light single photon ionization source 5. A digital linear ion trap 7 for secondary series mass analysis is provided downstream of the focusing electrode group 6, and an ion detection device 8 is provided on the side of the digital linear ion trap 7, and a data acquisition device 9 is connected to the ion detection de...

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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...

Claims

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Application Information

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IPC IPC(8): H01J49/26G01N27/64
Inventor 程平薛兵孙露露黄正旭高伟傅忠丁力周振
Owner KUSN HEXIN MASS PECTRUM TECH
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