Large image view: Tracing marijuana to its roots
![[Photo: Read caption below]](/news/archives/news-archives-2002-2010/featured/07/marijuana/images/zoom/carousel.jpg)
UAF photo by Marmian Grimes
Tim Howe, a research technician at the ÀÖ»¢Ö±²¥ Stable Isotope Facility, demonstrates how to load sample capsules into an autosampler tray. The samples are then combusted for testing in a stable isotope ratio mass spectrometer.

