When forensic chemists handle evidence that contains illegal drugs, trace amounts are inevitably released into the laboratory environment, which can cause detectable background levels of drugs in the lab. Why is this a problem? 'If I run a sample and it has fentanyl, I want to be sure that fentanyl came from the sample and not from background levels in my lab,' said a researcher.
from Top Health News -- ScienceDaily https://ift.tt/2OeiMou
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