@article{ref1,
title="Comparison analysis of illicit cocaine samples",
journal="Journal of forensic sciences",
year="1992",
author="Janzen, K. E. and Walter, L. and Fernando, A. R.",
volume="37",
number="2",
pages="436-445",
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.<p /> <p>Language: en</p>",
language="en",
issn="0022-1198",
doi="",
url="http://dx.doi.org/"
}