A kind of rapid detection method and device of trace explosive

A kind of rapid detection method and device of trace explosive

  • CN 103,940,899 B
  • Filed: 03/21/2014
  • Issued: 03/29/2019
  • Est. Priority Date: 03/21/2014
  • Status: Active Grant
First Claim
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1. a kind of rapid detection method of trace explosive, using ionic migration spectrum detection technology, ionization including sample molecule,Three steps of separation and detection, it is characterised in that:

  • implement the electricity as ionization source by surface desorption atmospheric chemical ionization deviceFrom surface desorption atmospheric chemical ionization device includes the ionization needle of external voltage, is made by ionization needle needle point generation corona discharge auxiliaryIt helps desorption gas to ionize and then makes the ionized sample molecule to measured ion;

    Sample to be tested is trace explosive, will be wipedThe test paper of trace explosive is placed in sample introduction device, and sample molecule is heated volatilization in sample introduction device and with carrier gasIt is introduced into the ionization region of separation detecting device;

    Carrier gas is air;

    The ionization needle is the spray point of material ni-Cd metal;

    Assist desorption gas;

    air.

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