Case

      Hair identification of drug use behavior is a practical and universal identification method that has emerged in the legal inspection department in recent years.

      Drug components or metabolites in drug addicts will be used in the synthesis of tissue components during hair growth. Therefore, by identifying hair components, it is possible to quickly determine whether a suspect has drug abuse behavior.

      There are various extraction methods for hair components, among which grinding extraction is the most efficient and accurate. By grinding the hair into powder, the surface area of the hair can be greatly increased, and its keratin protein can be fully destroyed, so that the solvent can penetrate deep into the medulla and cortical layers of the hair to fully dissolve and extract, and then detect whether the extraction solution contains Drug ingredients, you can quickly complete the identification.

       As early as October 2015, LAWSON has begun to cooperate with Shandong Jining City Public Security Bureau and Shanghai Judicial Appraisal Institute to conduct grinding and testing on the suspect's hair samples, high-throughput and accurate identification of whether the suspect has drug use.

       Now LAWSON has a new breakthrough - the grinding of hair samples can be completed at room temperature without freezing or liquid nitrogen, which is convenient for detection and identification in more occasions.

       Whether you need to quickly grind a large number of hair samples, or you need to carry equipment to the outdoor site for identification, LAWSON can meet the requirements! Grind up to 384 samples in 30 seconds (sample throughput varies by model).

Experimental Instruments

LAWSON Luoshan special hair grinder, LAWSON Luoshan ultrasonic ultra-quiet cleaning machine, etc.

Experimental steps
1. The sampled hair was cleaned in an ultrasonic cleaner to remove contaminants;
2. After the clean hair was dry, it was preliminarily chopped;
3. Put the broken hair into the LAWSON hair grinding kit;
4. Set theLAWSON A special hair grinder, start grinding; 
5. When the grinding is completed, take out the hair sample after the equipment stops, and carry out the follow-up component detection experiment.

Experiment Results

Hair sample before grinding

The milled hair sample is in the form of a fine powder

Experimental conclusion
      LAWSON special hair grinder only needs 30 seconds of grinding, which can fully meet the particle size of the hair sample for the component extraction experiment of the sample Require.  

LatestFrozen GrinderCase Show-Shanghai Runjia Judicial Appraisal Institute

      LAWSON LAWSONis a Chinese multi-sample tissue grinder and freezer grinder The inventor, mastering the core technology, is one of the rare large-scale production bases of grinding machines in China that integrates production and sales and has a very complete range of types.

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