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Gas chromatography-mass spectrometry is a widely used analytical technique for the detection of volatile compounds. Ionization techniques most frequently used in forensic toxicology include electron ionization (EI) or chemical ionization (CI), with EI being preferred in forensic analysis due to its detailed mass spectra and its large library of ...
The testing kit, which costs approximately $150, involves swabbing the cheek and mailing the sample back to a laboratory company to see if the gene mutations are present.. Results typically come ...
Laboratory-based drug testing is done in two steps. The first step is the screening test , which is an immunoassay based test applied to all samples. The second step, known as the confirmation test, is usually undertaken by a laboratory using highly specific chromatographic techniques and only applied to samples that test positive during the ...
Example of a GC–MS instrument. Gas chromatography–mass spectrometry (GC–MS) is an analytical method that combines the features of gas-chromatography and mass spectrometry to identify different substances within a test sample. [1]
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Blood alcohol content (BAC), also called blood alcohol concentration or blood alcohol level, is a measurement of alcohol intoxication used for legal or medical purposes. [1] BAC is expressed as mass of alcohol per volume of blood. In US and many international publications, BAC levels are written as a percentage such as 0.08%, i.e. there is 0.8 ...
Waters Corporation is an American publicly traded analytical laboratory instrument and software company headquartered in Milford, Massachusetts. The company employs more than 7,800 [ 2 ] people, with manufacturing facilities located in Milford, Taunton, Massachusetts ; Wexford , Ireland and Wilmslow , [ 3 ] Cheshire .
Shaddow said it was the biggest drug lab takedown in recent history for the department. The lab contained about 300,000 pills suspected to be fentanyl, the department said. Other drugs and ...