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| Creator | Title | Description | Subject | Date | ||
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 | Ehleringer, James R. | Sourcing drugs with stable isotopes | Carbon (δ13C) and nitrogen (δ15N) isotope ratios at natural abundance levels are useful tools in determining the region-of-origin for both cocaine and heroin. Here we show that cocaine originating from different geographic regions of South America exhibited pronounced differences in their δ13C a... | Stable isotopes; Drug sourcing; Region-of-origin signature; Isotope ratio analysis | 2001 |
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