>Dear Isogeochem'ers,
>
>Can anyone give me some good references from past/recent studies concerning
>the use of stable isotopes in drug/narcotic identification....determining
>heroin or cocaine sources from around the world, use of stable isotopes in
>criminal investigations etc. I'd also be interested to hear about any
>studies currently in progress.
>
>Thanks
>
>Karyne
>
Karyne,

Here is another reference:

Mason et al., 1998.  The use of stable carbon isotope analysis to detect
the abuse of testosterone in cattle.  Anlyst, 123, 2405-2408.

Hal

Dr. Haraldur R. Karlsson
Associate Professor of Geosciences
Department of Geosciences, and
Department of Chemistry and Biochemistry (joint)
Texas Tech University
Box 41053
Lubbock, TX 79409, USA

(806)-742-3130 office
(806)-742-3112 lab
(806)-742-0100 Dept. fax