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jueves, 23 de enero de 2020

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	Forensics & Toxicology
	The latest forensics & toxicology news from across News Medical

Forensics at your Fingertips: Moving Towards On-Scene Identification?

Forensic science is based on the idea that every interaction leaves a trace, so every crime leaves some evidence of the perpetrator. As a result, identifying and analyzing both known and unknown substances is a vital part of forensic science. In this way, justice often depends on reliable analytical methods and techniques. The latest advances in analytical chemistry now promise a new era of forensic science.

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			Ionic Fluids for Microextraction in Forensic Toxicology In order to accurately quantify the concentration of trace analytes within a complex mixture, appropriate sample preparation is imperative. Some of the most common pretreatment methods that are used prior to analysis by high-performance liquid chromatography (HPLC) or gas chromatography with mass spectrometry (GC-MS) include liquid-liquid extraction (LLE) and solid phase extraction (SPE).

			Counterfeit Watches Detected with Elemental Analysis A Swiss team of researchers have developed a technique to detect counterfeit watches using inductively coupled plasma mass spectrometry (ICP-MS), producing chemical profiles which classify watches into chemical groups, determining their authenticity.

	New sweat test could help detect a person’s marijuana-use Forensic chemist Jan Halámek is proving that our own perspiration not only gives away how drunk we are – but if we are high, too. The lab has captured the ability to detect a person's marijuana-use based on contents in a small skin secretion that can be taken from fingerprints or any other sweat glands.

	A Thin-Film Microextraction Procedure for the Illicit Drug Screening of Biofluids A team from the University of Waterloo have developed a direct and fast means of quantifying drug levels in beverages and bodily fluids. Using a new analytical setup – dielectric barrier discharge (DBD), combined with high-resolution mass spectrometry – the team achieved an enhanced dynamic range of detection and lower limits of quantitation, compared to the prevailing techniques.

	ToxPoint article highlights alternative mechanism to bring focus to major issues in toxicology The new year has brought with it advances to the Society of Toxicology's official journal, Toxicological Sciences, some of which are reflected in the January 2020 issue-;Volume 173, Issue 1.