Large image view for feature story: Tracing marijuana to its roots

Large image view: Tracing marijuana to its roots

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UAF photo by Marmian Grimes

Tim Howe, a research technician at the AV��̳ 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.

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