Ion migration and generation device and control method thereof

Abstract

The invention discloses an ion migration and generation device and a control method of the ion migration and generation device. The ion migration and generation device comprises an ion generating and leading-out unit, an electric field electric potential gradient generating unit, an ion information acquisition unit and a circuit control system, wherein the ion generating and leading-out unit comprises an ion generating module, a gas circuit module, an ion leading-out module and an ion control gate module, the electric field electric potential gradient generating unit is composed of multiple electric field ring pieces and multiple insulating ring bodies, and the ion information acquisition unit comprises an ion flow receiver, an ion flow receiver insulator, an ion flow receiver shielding cup and an ion flow piece; under the control of a circuit control system, a gas sample is triggered by the ion generating and leading-out unit in the ion form and then enters the electric field electric potential gradient generating unit, and due to the fact that the flight durations (movement speeds) of different ions in an electric field are different, a substance to be detected can be analyzed by forming a spectrogram after information is acquired. The ion migration and generation device can serve as a substance detection instrument to be applied to the field of precise analysis.

Description

technical field [0001] The invention relates to an ion migration generating device and its control method. Under the mutual cooperation with the circuit control system, the sample gas is ionized into ions and then enters the electric field to move. Since different ions move at different speeds in the electric field (different flight times) ), so after collecting this information to form a spectrum, the substance to be detected can be analyzed. The invention can be used as a substance detection instrument in the field of precision analysis. Background technique [0002] On-site rapid detection of trace and low-concentration volatile organic compounds, such as explosives, drugs, chemical warfare agents and other related public safety fields, is becoming more and more important. Ion detection is a good means to realize the detection of the above substances. At present, the instruments with ion detection performance generally use mass spectrometers, which need to be equipped wi...

AI Technical Summary

Problems solved by technology

Ion detection is a good means to realize the detection of the above substances. At present, the instruments with ion detection performance generally use mass spectrometers, which need to be equipped with huge devices, and rapid on-site detection is very inconvenient.

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