NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY
Mass spectrometer. Researchers adjusting the controls of a mass spectrometer. This is an all-metal demountable mass spectrometer. Mass spectroscopy is the use of strong magnetic and electric fields to ionise samples and separate them by mass and charge. This allows the chemical composition of the samples to be identified. Photographed in 1949, in the Physics Division of the National Physical Laboratory, Teddington, UK.
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