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Drug Identification With Gas Chromatography Mass Spectrometr - College Paper

Drug Identification With Gas Chromatography Mass Spectrometr


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 ...

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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 the gas phase and have comparable sample levels and temperature ranges. The ! most important feature of the tw o instruments being coupled is that they perform complementary analytical functions.
The instrumentation of the gas chromatograph/mass spectrometer is very complex. The instrument's parts include an injector, a carrier gas, a column, a separator, an ionization ...

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Drug Identification With Gas Chromatography Mass Spectrometr. (2008, February 5). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Drug-Identification-Gas-Chromatography-Mass-Spectrometr/78549
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"Drug Identification With Gas Chromatography Mass Spectrometr." Essayworld.com. February 5, 2008. Accessed December 23, 2024. http://www.essayworld.com/essays/Drug-Identification-Gas-Chromatography-Mass-Spectrometr/78549.
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PAPER DETAILS
Added: 2/5/2008 02:49:58 AM
Category: Science & Nature
Type: Premium Paper
Words: 771
Pages: 3

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