Comparison analysis of illicit cocaine samples. |
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| Authors: | K E Janzen L Walter A R Fernando |
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| Affiliation: | Royal Canadian Mounted Police Forensic Laboratory, Edmonton, Alberta. |
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| Abstract: | A rapid method for comparison analysis of illicit cocaine samples has been developed. The raw data are obtained by capillary gas chromatography using a nitrogen-phosphorus detector. The area ratios of four alkaloids (tropacocaine, norcocaine, cis-cinnamoylcocaine, and trans-cinnamoylcocaine) to cocaine are calculated for each sample. These ratios are compiled in a computer database which allows easy comparison of samples and makes possible reliable conclusions regarding their commonality of origin. |
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