Sharks found near Brazil coast test positive for cocaine
- Scientists report that tests on sharks near the Brazilian coast have revealed the presence of cocaine.
A study from the Oswaldo Cruz Foundation in Brazil has now found evidence sharks are in fact being affected by drugs. Then, using a common method known as liquid chromatography with tandem mass spectrometry, which separates molecules in a liquid, tests were performed on muscle and liver tissue to detect the presence of cocaine and the primary metabolite of the drug, benzoylecgonine.
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