FOOD & DRUG ADMINISTRATION / SCIENCE PHOTO LIBRARY FOOD & DRUG ADMINISTRATION / SCIENCE PHOTO LIBRARY
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Testing dietary supplements. Scientist using mass spectrometry to analyse the ingredients of dietary supplements. Mass spectrometry uses strong magnetic and electric fields to separate the components of a sample by mass and charge. This enables the identification of any undisclosed or toxic ingredients. Photographed at the FDA Laboratoy, Irvine, California, USA.
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