Drug Identification With Gas Chromatography Mass S Essay

This essay has a total of 771 words and 3 pages.

Drug Identification With Gas Chromatography Mass Spectrometry

Drugs 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 the best method for the testing of
drug use. Gas chromatography and mass spectrometry are two different methods for
identifying chemical substances, and the two instruments have be coupled together to
perform a highly complementary analytical function. The gas chromatograph and the mass
spectrometer have theories behind how their techniques work, and specific forensic
applications for their instrumentation. The history and theory of the gas chromatography
started over forty years ago with the invention of the capillary column. The gas
chromatograph offers rapid and very high-resolution separations of a very wide range of
compounds, with the only restriction that the analyzed substance needs to have sufficient
volatility. The theory behind the mass spectrometer is to use the difference in
mass-to-charge ratio (m/e) of ionized atoms or molecules to separate them from each other.
Mass spectrometry is therefore useful for quantitation of atoms or molecules and also for
determining chemical and structural information about molecules. Molecules have
distinctive fragmentation patterns that provide structural information to identify
structural components. The combination of the gas chromatograph and mass spectrometer is
very easy, because both instrument needs to be modified in excess and both are analyzed in
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  • Drug Identification With Gas Chromatography Mass S
    Drug Identification With Gas Chromatography Mass Spectrometry Drugs 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
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  • Drug Identification with Gas Chromatography Mass S
    Drug Identification with Gas Chromatography Mass Spectrometry Drugs 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