A RAPID GAS-CHROMATOGRAPHIC METHOD FOR THE FINGERPRINTING OF ILLICIT COCAINE SAMPLES

JG ENSING, C RACAMY, RA DEZEEUW

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22 Citations (Scopus)

Abstract

A gas chromatographic (GC) fingerprint method, based on the presence or absence of six congeners, was developed for illicit cocaine samples. The fingerprint utilizes the relative abundances of these congeners towards each other, disregarding cocaine as the main constituent, and can be expressed numerically or graphically in the form of pictograms for rapid visual comparison. The method can be applied directly to a solution of the sample in chloroform, without previous workup procedures. More than 70 unrelated samples were analyzed and a great variation was observed in the parameter composition. On the other hand, a remarkable similarity could be seen between related samples. The GC fingerprint method may be considered an important contribution for sample comparison, as is exemplified by a subdivision of the analyzed samples in different categories, based on the number and types of congeners found.

Original languageEnglish
Pages (from-to)446-459
Number of pages14
JournalJournal of forensic sciences
Volume37
Issue number2
Publication statusPublished - Mar-1992

Keywords

  • TOXICOLOGY
  • COCAINE
  • CHROMATOGRAPHIC ANALYSIS
  • COCAINE CONGENERS
  • FINGERPRINTS
  • SAMPLE COMPARISON
  • GAS CHROMATOGRAPHY
  • DRUG TRAFFICKING
  • PERFORMANCE LIQUID-CHROMATOGRAPHY
  • IMPORTED HEROIN PRODUCTS
  • CIS-CINNAMOYLCOCAINE
  • IDENTIFICATION
  • ORIGIN
  • TRUXILLINES
  • IMPURITIES

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