Method and device for detecting content of narcotic drugs in expired gas

Abstract

The invention provides a device and a method for detecting content of narcotic drugs in expired gas. The device comprises a gas bag, a sampling device and an acoustic surface wave gas chromatograph, wherein the gas bag is provided with a gas bag port and is used for collecting and storing the expired gas of a testee; the sampling device is used for connecting the gas bag accommodating the expired gas with the acoustic surface wave gas chromatograph, and then the acoustic surface wave gas chromatograph is enabled to detect the content of the narcotic drugs in the expired gas. According to the device and the method for detecting the content of the narcotic drugs in the expired gas, invasive injury of the testee is avoided, a sample is convenient and rapid to collect, detection and analysis time is short, a result is accurate, drug addicts can be screened accurately and rapidly, and convenience is brought to work of law enforcement officers.

Description

technical field [0001] The present invention relates to the detection of narcotics, more specifically to a method and device for detecting the content of narcotics in breath. Background technique [0002] In the prior art, the main methods for screening drug addicts include urine testing, blood testing, hair testing, sweat testing, and saliva testing. [0003] Among them, urine testing method and blood testing method are currently widely used screening methods for drug addicts. Although these two methods have high accuracy, they require a lot of time and manpower, and the cost of testing is also high. In particular, the instruments and equipment for blood testing are quite expensive, and they are invasive to screening personnel, which is not conducive to the on-site screening of drug addicts by law enforcement officers. [0004] Hair detection, sweat detection and saliva detection methods have many interference factors, and the accuracy of the results is low, which is not c...

AI Technical Summary

Problems solved by technology

[0003] Among them, urine testing method and blood testing method are currently widely used screening methods for drug addicts. Although these two methods have high accuracy, they require a lot of time and manpower, and the cost of testing is also high. In particular, blood test equipment is quite expensive, and it is invasive to the screening personnel, which is not conducive to the on-site screening of drug addicts by law enforcement officers

[0004] Hair detection, sweat detection and saliva detection methods have many interference factors, and the accuracy of the results is low, which is not conducive to the fairness of law enforcement

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