Profiling of contaminants in illicit drug samples for source identification.Trafficking of drugs in South Carolina South Carolina, state of the SE United States. It is bordered by North Carolina (N), the Atlantic Ocean (SE), and Georgia (SW). Facts and Figures
Area, 31,055 sq mi (80,432 sq km). Pop. (2000) 4,012,012, a 15. is not uncommon because major interstates pass through the state. When drugs are confiscated con·fis·cate
tr.v. con·fis·cat·ed, con·fis·cat·ing, con·fis·cates
1. To seize (private property) for the public treasury.
2. To seize by or as if by authority. See Synonyms at appropriate.
adj. , the manufacturing or processing origin is of importance to the forensic chemist because identification of impurities and contaminants enables matching of different samples and correlation with drug trafficking activities. We have catalogued and examined over 2,000 gas chromatographic/mass spectrometric spec·trom·e·ter
A spectroscope equipped with scales for measuring wavelengths or indexes of refraction.
spec analyses of drug samples confiscated during recent SLED investigations in Richland, Kershaw, and Charleston counties. We have used multivariate The use of multiple variables in a forecasting model. statistical methods (principal component analysis and cluster analysis Cluster analysis
A statistical technique that identifies clusters of stocks whose returns are highly correlated within each cluster and relatively uncorrelated across clusters. Cluster analysis has identified groupings such as growth, cyclical, stable, and energy stocks. ) to validate identification of the chemical nature of the underlying similarities of these confiscated drug samples. The use of these pattern recognition tools with drug profiling allows the forensic chemist to cluster confiscated drugs into groups of materials that are similar because of their trace background contaminants.
Angela C. Powell, Christopher R. Mubarak, Stephen L. Morgan Department of Chemistry and Biochemistry The University of South Carolina, Columbia Demi Garvin Drug Identification Laboratory South Carolina Law Enforcement Division