ResourceGeneral Lab
Hair Grinding for Forensic and Toxicological Analysis in a 7mL Tube
11 Jul 2017The following application note details the use of Precellys 7mL tubes in the grinding of larger quantities of hair for forensic analysis.
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Toxicology / Drugs of Abuse TestingToxicology and Drugs of Abuse Testing is the investigation into toxic and illegal substances found at the scene of a crime or from a suspect and / or victim associated with a scene of a crime. Analyzers, immunoassays and drugs of abuse test kits and presumptive test kits are an essential aspect of toxicology investigation.Homogenizers and BlendersHomogenizers and blenders are used to homogenize various types of material, including tissue, cells, plants, food, soil, biological and chemical samples for subsequent analysis. Lab equipment for sample homogenization includes handheld and benchtop homogenizers, bead mill, ultrasonic and multiple sample homogenizers, high shear homogenizers and blenders. Homogenizer bead and probe multipacks are available to avoid cross contamination of samples, as well as cooling systems for homogenizing temperature-sensitive samples. Homogenizers are often used in the first step of extraction of DNA, RNA and proteins from tissue and cell samples. Find the best homogenizers and blenders in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Mills, Sieves and PressesMills, sieves and presses are used to break and sort solid materials into smaller particle sizes for further processing such as pellet pressing or analysis. Milling equipment includes grinders, ball mills, cutting mills, jaw crushers, knife mills, beater and planetary mills. Sorting of smaller particulates can be achieved with test sieves and sieve shakers. Final powders can be pressed with hydraulic presses. Milling and pressing solid samples is an important preparation step in X-ray fluorescence spectroscopy (XRF) and diffraction (XRD). Find the best mills, sieves and presses in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.DNA / RNA Extraction and PurificationPurified DNA and RNA are required for numerous downstream molecular biology applications. Consequently, the importance of high-quality DNA/RNA extraction and purification equipment cannot be underestimated. Many purification kits are available and are typically optimized for nucleic acid type and source, including plasmid DNA, genomic DNA, mRNA, RNA and viral nucleic acid purification kits. Automated extraction and purification of nucleic acids can be implemented with magnetic bead separator instruments or high-throughput purification workstations. Find the best DNA/RNA extraction and purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Drug TestingIt is essential to test the efficacy and toxicity of drugs at every stage of their development to ensure that a pharmaceutical product is fit for purpose and safe for use before reaching the stage of mass production and distribution.GrindingForensic ToxicologyForensic toxicology is used to determine cause of death, drug use and contaminations. Toxicological evaluations are commonly used in analytical chemistry, clinical, life sciences and forensics.

