Forensic testing labs need to clean up their act...
Joanna Cummings |
In forensics laboratories, unacknowledged background levels of previously analyzed drugs can have affect the accuracy of ongoing analyses. A team from the National Institute of Standards and Technology (NIST) and the Maryland State Police recently set out to assess the levels of these “hidden” chemicals, by collecting samples from various work surfaces all around the lab (1). Edward Sisco, a research chemist in the Surface and Trace Chemical Analysis Group, NIST, tells us more about what they discovered – and why it’s important.
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