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Quick drug user screening instrument

A fast and screening technology, applied in material excitation analysis, Raman scattering, etc., can solve problems such as long detection period, sample confusion, sample label error, etc., to improve the accuracy of drug detection, clear technical solutions and technical effects, reduce The effect of the chance of missed catch and false positives

Inactive Publication Date: 2018-12-21
PEKING UNIV SHENZHEN HOSPITAL
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Problems solved by technology

However, because the sampler and the tester belong to different departments, these two inspection methods may cause sample label errors or sample confusion, and even cause misjudgment
In addition, as mentioned above, the existing detection methods for drug users are generally offline, and the detection cycle is long, which cannot meet the needs of anti-drug personnel to quickly and accurately identify drug users in public places such as railway stations or downtown areas.

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specific Embodiment approach 1

[0015] see figure 1 , The rapid screening instrument for drug addicts disclosed in this preferred embodiment includes a hardware part and a software part. The hardware part mainly includes various necessary components for completing Raman spectrum detection, and the software part mainly includes relevant functional modules for processing the detection data.

[0016] The hardware part can be any various portable or hand-held Raman spectrometers already on the market, which generally include an excitation light source, a Raman fiber optic probe, a filter, a detector, and a central processing system. The excitation light source is used to provide a laser that excites the object to be tested such as human skin or hair. It can be any excitation light source in the prior art, preferably a semiconductor laser, with an excitation wavelength of 785 nm, a spectral linewidth greater than 2 nm, and a divergence angle less than 3mrad. The Raman fiber optic probe is mainly used to transmit...

specific Embodiment approach 2

[0021] see figure 2 , figure 2 The dotted line in is used to represent the data information flow of the sieving instrument. The rapid screening device for drug addicts disclosed in the preferred embodiment 2 of the present invention has basically the same hardware configuration and software functions as the preferred embodiment 1. The difference is that in the preferred embodiment 2, a detection point factor data correction module and corresponding hardware support components are added to complete the Raman spectrum measured data from different detection points (hair, skin, sweat, urine, blood) The calibration further improves the detection accuracy of the sieving instrument and reduces the probability of missed or misjudged.

[0022]In this preferred embodiment, the camera device used to obtain the detection point information is added to the hardware. The camera device can be any camera in the prior art, such as a needle camera. As long as it has a camera function or a vi...

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Abstract

The invention belongs to the technical field of drug detection, and particularly relates to a quick drug user screening instrument. The quick drug user screening instrument comprises an excitation light source, a Raman fiber-optic probe, a filter, a detector and a central processing system. The central processing system is internally provided with an illicit drug sample database, a data processingmodule and a result output module. Raman spectrum sample data of various illicit drugs are stored in the illicit drug sample database. The data processing module judges whether a to-be-detected object contains illicit drugs or not by comparing actually-measured Raman spectrum data and the data in the illicit drug sample database. The result output module is used for outputting the judgment resultof the data processing module. According to the quick drug user screening instrument, through the Raman spectrum detection technology and the computer data processing technology, drug Raman signal peaks can be quickly detected from hairs, skin, sweat, urine and blood conveniently, a convenient method for quickly screening drug users on the scene is provided for anti-drug criminal investigation brigades, the probability of capture leakage and misjudgment is expected to be lowered greatly, and the drug detection accuracy is improved.

Description

technical field [0001] The application belongs to the technical field of drug detection, and in particular relates to a rapid screening instrument for drug addicts. Background technique [0002] At present, the common detection methods for drug users are blood test and urine test. Blood test and urine test are a reliable method for drug detection by collecting the body fluid or secretion of the person being tested, and then using chemical analysis. However, since the sampler and the tester belong to different departments, these two inspection methods may cause sample label errors or sample confusion, and even cause misjudgment. In addition, as mentioned above, the existing detection methods for drug users are generally offline, and the detection cycle is long, which cannot meet the needs of anti-drug personnel to quickly and accurately identify drug users in public places such as railway stations or downtown areas. Contents of the invention [0003] In view of this, the p...

Claims

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Application Information

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IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 郑婷婷陈芸刘汉清冯欢欢石宇刘俐孙新珺
Owner PEKING UNIV SHENZHEN HOSPITAL
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