Ion mobility spectrometer using Hadamard transform method

A technology of ion mobility spectrometer and migration zone, which is used in mass spectrometers, flow control using electrical devices, instruments, etc.

Inactive Publication Date: 2009-10-21
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide an ion mobility spectrometer using the Hadamard transformation method, which can effectively improve the duty cycle and obtain more product ions for the problems of the existing ion mobility spectrometer.

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  • Ion mobility spectrometer using Hadamard transform method
  • Ion mobility spectrometer using Hadamard transform method
  • Ion mobility spectrometer using Hadamard transform method

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Embodiment Construction

[0032] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0033] like figure 2 Shown, a kind of ion mobility spectrometer that uses Hadamard transformation method, it comprises ionization reaction zone 10, migration zone 20 and charge collector 30, is provided with ionization source in ionization reaction zone 10, ionization reaction zone 10 and migration zone 20 An ion gate 40 is arranged between them, and the entrance end of the ionization reaction zone is provided with a sampling device 50, and the ion gate 40 is connected with a pseudo-random binary sequence generating device 60, and the charge collector 30 is connected with a data analysis device 70, and the ion mobility spectrometer The instrument also includes a control device 80.

[0034] The sampling device 50 includes a test paper or a suct...

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Abstract

The invention provides an ion mobility spectrometer using a Hadamard transform method, which comprises an ionization reaction area, a mobility area and a charge collector; an ionization source is arranged in the ionization reaction area; an ion door is arranged between the ionization reaction area and the mobility area; the inlet end of the ionization reaction area is provided with a sampling device; the ion door is connected with a pseudo-random binary sequence generating device used for controlling the periodic opening and closing of the ion door; the charge collector is connected with a data analysis device which is used for completing acquisition of signal data and comparison of results, and alarming if the comparison between the results and records in a sample database is successful; and the ion mobility spectrometer also comprises a control device for precisely controlling gas-flow rate and temperatures of various points through a sensor. The ion mobility spectrometer has the characteristics of quick detection speed, high sensitivity, small device volume, simple operation and the like, and is widely applied in aspects of investigation of drug smuggling, anti-terrorism and safety inspection.

Description

technical field [0001] The present invention relates to an ion mobility spectrometer (IMS: Ion Mobility Spectrometer), in particular to an ion mobility spectrometer using a Hadamard transformation data processing realization method. Background technique [0002] The situation of anti-terrorism and anti-riot in the world today has made great progress in anti-riot detection equipment based on various disciplines and technologies. In addition to instruments and equipment based on analytical chemistry, physical methods are: ion mobility spectrometry (IMS) method, neutron Detection method, X-ray detection method, nuclear quadrupole moment resonance method, etc. [0003] IMS detection technology is a kind of detection technology to identify the species of substances by measuring the ion migration speed. The ions pass through the transfer tube under a stable electric field and atmospheric pressure. Different ions have different migration times. Identifying the migration time of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/26G01N27/62G05D7/06G05D23/20G01N27/622
Inventor 陈勇刘伟豪梁辰沙淼淼朱丽英朱学梅袁曦江洪朱弘吴轶轩
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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