JOHN COLE / SCIENCE PHOTO LIBRARY JOHN COLE / SCIENCE PHOTO LIBRARY
For editorial use only.
Drug quality control. Technician placing a drug sample into a nuclear magnetic resonance (NMR) spectrometer during quality control at a pharmaceutical production plant. This machine allows the drug molecules to be examined to ensure that the correct drug has been created. It uses radio waves and a powerful magnetic field to study the structure of chemical compounds.
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