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...
has become the premier technique for separations and analysis of drugs. Employers will often test prospective employees for drug use. They test with either hair or urine samples of the prospective employee, and run the samples through a GC/MS to determine if the possible employee has used drugs. They determine this by comparing mass chromatograms of known drugs with that of the test sample. The gas chromatograph/mass spectrometer is known as the best resource to prove the identificationof a chemical substance, such as a drug, because of the mass chromatographs that act like a fingerprint of a chemical substance.