On-site detection instrument for drugs in hair

Abstract

The invention discloses an on-site detection instrument for drugs in hair. The on-site detection instrument for the drugs in the hair comprises a machine box and a motor located in the machine box, and a swing mechanism and a tube plate assembly are further arranged in the machine box; the swing mechanism comprises a transmission shaft assembly, wherein a transmission shaft is driven to rotate along a shaft core by the motor, an eccentric shaft is fixedly arranged on the end part of the transmission shaft, and a shaft core of the eccentric shaft and the shaft core of the transmission shaft areat an included angle of 10-15 degrees; and a bearing sleeves the eccentric shaft, a swing assembly and the eccentric shaft are coaxially arranged and the swing assembly swings with the rotation of the eccentric shaft, a fixing device is arranged above the swing assembly, the fixing device comprises a fixing disk and a knob assembly, a convex platform is arranged on the fixing disk, and a base disk is installed on the convex platform. According to the on-site detection instrument for the drugs in the hair, the high-frequency swing of a rotating disk can be realized through the rotation of theeccentric shaft, so that a rotating cylinder on the rotating disk is driven to swing in a high-frequency mode to further drive high-frequency reciprocating motion of grinding beads to grind keratin materials, liquid in a grinding tube is detected on a corresponding colloidal gold plate, and screening results can be displayed.

Description

technical field [0001] The invention relates to the technical field of solid tissue crushing, in particular to a crushing instrument. Background technique [0002] On November 22, 2016, the National Narcotics Control Office revised the "Measures for the Identification of Drug Addiction", adding that the method for identifying drug addiction is based on the detection of drugs in hair. Drugs are well absorbed by smoking or injection, and can penetrate the blood-brain barrier in large quantities and produce effects quickly. After drugs enter the human body, they are metabolized under the action of blood lipase, and then further metabolized after entering the liver. A considerable amount of drugs and metabolites enter the hair, and most of them combine with melanin and exist in the hair medullary cavity. [0003] When it comes to the identification of drug abuse, often due to the rapid metabolism of drugs in the body, drugs cannot be detected in the urine after 72 hours of drug...

AI Technical Summary

Problems solved by technology

[0006] Both acidolysis and solvent extraction methods need to stay overnight, which takes a long time and cannot meet the needs of rapid screening. Drugs and their metabolites are unstable, have low content, and are easy to decompose when exposed to heat or placed for a long time. Therefore, methanol ultrasound is currently used. Other hair treatment methods, freeze grinding technology is a pretreatment technology developed in recent years, but the hair is always at -196°C during the treatment process, and the hair crushing treatment increases the contact area with the solvent, effectively improving the release of drugs in the hair Efficiency, but the freezing and grinding technology usually takes 3 hours, and a large amount of liquid nitrogen is required for freezing, which is costly

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