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A method of detecting drugs

A detection method and drug technology, applied in the field of drug detection, can solve problems such as uncertainty about the type of substance, limited assistance in search and evidence collection, etc.

Active Publication Date: 2022-03-22
BEIJING HTNOVA DETECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that the equipment is small in size, light in weight, and resistant to mixture interference, but it is often impossible to determine the type of specific substance, which is of limited help for further search and evidence collection.

Method used

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  • A method of detecting drugs
  • A method of detecting drugs
  • A method of detecting drugs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Mix N,N'-dodecylperylenediimide nanofibers with chloroform to obtain a solution with a concentration of 0.15mmol / L, then continue to mix it with ethanol at a volume ratio of 1:10, and statically Leave it for 24 hours to obtain a fibrous material with red fluorescence;

[0106] Place the fibrous material with red fluorescence in the temperature gradient medium tube; enter the detection state, turn on the heating module and the cooling module to make the temperature of the air inlet 230 ° C, the air outlet is room temperature, turn on the LED, and then detect the LED and fluorescence At the same time, the detector scans along the temperature gradient medium from the gas outlet to the gas inlet, and then scans back to the gas outlet (scanning speed is 2cm / s, 20 points are recorded per second, and the average displacement difference of each point is 1mm. The process is 6 to 7 seconds) to carry out the fluorescence performance test, and obtain the fluorescence performance da...

Embodiment 2

[0110] Mix N,N'-dodecylperylenediimide nanofibers with chloroform to obtain a solution with a concentration of 0.15mmol / L, then continue to mix it with ethanol at a volume ratio of 1:10, and statically Leave it for 24 hours to obtain a fibrous material with red fluorescence;

[0111]Place the fibrous material with red fluorescence in the temperature gradient medium tube; enter the detection state, turn on the heating module and the cooling module so that the temperature of the air inlet is 230 ° C, the air outlet is at room temperature, turn on the LED or laser, and then the LED and the The fluorescence detector simultaneously scans along the temperature gradient medium from the gas outlet to the gas inlet, and then scans back to the gas outlet (scanning speed is 2cm / s, records 20 points per second, and the average displacement difference of each point is 1mm, The entire scanning process takes 6-7 seconds) to perform a fluorescence performance test to obtain the fluorescence p...

Embodiment 3

[0114] Mix N,N'-dodecylperylenediimide nanofibers with chloroform to obtain a solution with a concentration of 0.15mmol / L, then continue to mix it with ethanol at a volume ratio of 1:10, and statically Leave it for 24 hours to obtain a fibrous material with red fluorescence;

[0115] Place the fibrous material with red fluorescence in the temperature gradient medium tube; enter the detection state, turn on the heating module and the cooling module so that the temperature of the air inlet is 230 ° C, the air outlet is at room temperature, turn on the LED or laser, and then the LED and the The fluorescence detector simultaneously scans along the temperature gradient medium from the gas outlet to the gas inlet, and then scans back to the gas outlet (scanning speed is 2cm / s, records 20 points per second, and the average displacement difference of each point is 1mm, The entire scanning process takes 6-7 seconds) to perform a fluorescence performance test to obtain the fluorescence ...

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Abstract

The invention relates to the technical field of drug detection, in particular to a drug detection method. The detection method provided by the present invention is to establish a controllable temperature gradient field and make the detection vapor pass through the temperature gradient field, arrange drug fluorescent sensitive materials along the direction of the temperature gradient in the direction of vapor advancement, and monitor the gas during or after the gas passes through. Rapidly detect the fluorescence change signal of the fluorescent sensitive material, process the signal and compare it with the results in the substance library to determine whether the sample to be tested is a drug, and finally determine the type of drug.

Description

technical field [0001] The invention relates to the technical field of drug detection, in particular to a drug detection method. Background technique [0002] Because lawbreakers usually hide controlled substances such as drugs through packaging and sealing, it greatly increases the difficulty of drug detection. Therefore, trace detector devices that can detect and detect only a very small amount of contamination residue and slow penetration of controlled items such as drugs and explosives have gradually begun to be used and are widely accepted. [0003] At present, the more successful trace detection methods include ion mobility spectrometry and fluorescence detection. Both need to use means such as heating to heat chemicals with high vaporization temperature such as drugs and explosives to generate a small amount of vapor, and then the vapor enters the detector through the airflow. Ion migration technology uses radioactive sources to ionize water and oxygen molecules in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64G01N21/17
CPCG01N21/6428G01N21/645G01N21/1717G01N2021/1731
Inventor 王辰杨鹤粟勇袁丁吴红彦夏征
Owner BEIJING HTNOVA DETECTION TECH CO LTD