Chemist quantitating substance
The Toxicology Unit at the State Police Crime Laboratory in Sudbury performs testing of blood and urine samples drawn during the investigation of drivers thought to be Operating Under the Influence (OUI) of alcohol and/or drugs and interprets those findings for court proceedings. The chemists use a variety of analytical instruments and techniques, including gas chromatography, mass spectrometry, liquid chromatography tandem mass spectrometry, enzyme-linked immunosorbent assay and solid phase extraction. The Toxicology Unit also tests biological specimens, primarily blood and urine samples collected during the investigation of sexual assaults, in order to determine the presence or absence of date-rape drugs such as Rohypnol® ("Roofies"), GHB. Many other drugs can be detected and quantitated by the chemists assigned to the Toxicology Unit.
Liquid Chromatography Mass Spectroscopy

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