Volume 36, Issue 1 (January 1991)

    Coca Paste: Chemical Analysis and Smoking Experiments

    (Received 8 December 1989; accepted 12 February 1990)

    CODEN: JFSOAD

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    Abstract

    Several samples of Colombian and a sample of Peruvian coca paste were subjected to chemical analysis to ascertain the complexity of these products. A neutral and acid fraction and a basic fraction were analyzed by gas chromatography/flame ionization detection (GC/FID) and gas chromatography/mass spectrometry (GC/MS). The basic fraction was also analyzed as its trimethylsilyl (TMS) derivative. Several gasoline residue components were identified in the neutral fraction. In addition to cocaine (>60% in all cases), other alkaloids were identified. Lead and manganese analyses were carried out on these samples. While all the samples contained no lead (<45 ppm), most of the Colombian samples contained significant amounts of manganese (>5%). Preliminary smoking experiments with a Colombian coca paste sample indicated that it behaves more like free cocaine than like a cocaine sulfate salt.


    Author Information:

    Jones, AB
    Research professor, Research of Pharmaceutical Sciences, MS

    ElSohly, MA
    Research professor, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Oxford, MS

    Brenneisen, R
    Visiting research professor, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Berne, MS


    Stock #: JFS13010J

    ISSN: 0022-1198

    DOI: 10.1520/JFS13010J

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    Author
    Title Coca Paste: Chemical Analysis and Smoking Experiments
    Symposium , 0000-00-00
    Committee E30