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Urinalysis Cody Jt Methamphetamine Cody Jt Drug
1,781 wordsHTML FONT SIZE = 5 PTSIZE = 14 B The Forensic Science Review /FONT FONT SIZE = 3 PTSIZE = 10 BR Application of fluorescence spectroscopy to forensic science; Siegel JA (US); 8 (1): 1 - 11; 1996. BR Application of pyrolysis gas chromatography in forensic science; Blackledge RD (US); 4 (1): 1 - 16; 1992. BR Determination of drugs of abuse and their stereoisomer's by circular dichroism; Purdie N (US); 3 (1): 1 - 16; 1991. BR Forensic identification of explosives by mass spectrometry and allied tech...
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One Of The First Gas Chromatography
2,184 words... e to make the whole print glow when the laser beam hits it. The technique of laser-sweeping enables large areas to be searched quickly, and prints in odd places can be found. Dusting the same surfaces with powder would take much longer and prints in unlikely places could be miss altogether. Prints found by a laser can also be dusted with fluorescent powder to make them show up even more clearly so they can be photographed. Fibers play an important role in crime detection. A fiber found on a ...
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Drug Identification With Gas Chromatography Mass Spectrometry
774 wordsDrugs are used everyday by people in many different ways for many different reasons. Drug testing has become a standard in pre-employment testing, because of the wide variety of drug use in today's society. Drugs tested for by a possible employer include Cocaine (crack), Amphetamines (crystal), Opiates (codeine, morphine, heroin), PCP (phencyclidine), and Marijuana. Gas chromatography / mass spectrometry is used to test hair and urine samples of possible drug abusers or job applicants, and it is...
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Thin Layer Chromatography Drop Of The Mixture Plate
442 wordsChromatography is the method of separating chemical substances that makes uses of the relative rates at which they are adsorbed from a moving stream of gas or liquid on a stationary substance, which is usually a finely divided solid, a sheet of filter material, or a thin film of a liquid on the surface of a solid. It is a versatile method that can separate very complex mixtures even in the absence of detailed previous knowledge of the number, nature, or relative amounts of the individual substan...
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Gas Chromatography Data Collection
939 wordsGas Chromatography Purpose: The purpose of the gas chromatography lab is to find out how different substances interact with the surface of a solid. Chromatography is a separation technique that depends on the relative distribution of the components of a mixture between a mobile phase and a solid stationary phase. Chromatography measures the tendency of a substance to interact with the surface of a solid or to remain in a mobile phase. When doing a chromatography lab the mobile phase has to be a ...
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Thin Layer Gas Chromatography
547 wordsDRUG TESTING Drug tests are a chemical analysis used to detect the presence of drugs in a small sample of urine or sometimes in blood. There are six types of drug testing: Pre-employment, Random, For-cause, Periodically Announced, Post-accident, and Rehabilitation. Pre-employment is testing that is done in a work place after you begin working and they only get to keep working if they pass the drug test. Random drug testing is testing without the person knowing on an advanced notice. For-cause te...
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Petrol Kerosene Mineral Turpentine Kerosene Mineral Turpentine Fire
1,180 wordsFire Investigation A fire investigation is a difficult task. The devastation, charred debris, collapsed structures, water soaked ashes, along with the smoke and stench, make an investigation uninviting and seemingly impossible. There are different types of fires; in homes, factories, brush, and in the forest. The best way to investigate a fire would be to use a trained team of personal. Fire marshals and private investigators with their experience of fires along with police officers skills for d...
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