Medical Advocates for Social Justice
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Acción Solidari   Abstract


Heroin purity and composition in Sydney, Australia

Lisa Maher*, Wendy Swift**, and Michael Dawson

Drug and Alcohol Review (2001) 20


The authors analyzed the pharmacological properties of heroin available for retail sale in Sydney on the premise that drug-related harm reduction programs in general, and interventions designed to facilitate heroin injection to smoking  require careful consideration of the pharmacological factors associated with the route of administration. The results of their analysis suggest that their premise is valid.

A retrospective sampling frame was constructed consisting of all suspected heroin seizures in Cabramatta between October 1998 and March 1997. n = 487. Thirty-three street-level "exhibits", consisting of  88 samples, were selected for analysis.  Ion chromatography was used to assess whether heroin was present as freebase or hydrochloride (or other salt).  High performance liquid chromatography with diode array  detection was used to assess the presence of diacetylmorphine hydrochloride (heroine hydrochloride , O - 6 monoacetylmorphine hydrochloride (degradation project) and acetyleodeine hydrochloride (synthesis byproduct).  Gas chromatography/mass spectagraphy with refractive index detection  were used to detect adulterants and diluents.

All samples contained heroin as the hydrochloride salt, No heroin free base was detected.  The mean purity was 66%. Eighty-five percent of the samples had an average purity of at least 50%. The adulterants detected were either
 pharmacologically active to improve the bioavailability of heroin HCL, or pharmacologically inactive diluents primarily used to add bulk (sugars). None of the adulterants were harmful.
 
*    School of Public Health and Community Medicine, University of New South Wales, NSW 2052, Australia

**   NDARK, University of New South Wales, NSW 2052, Australia

*** Department of Chemistry, Minerals, and Forensic Science,  University of Technology,
NSW 2007, Australia
 

Abstract by Gordon Nary


Policing and Public Health: Law Enforcement and Harm
Minimization in a Street-level Drug Market

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