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Mass spectrometer sample tray

Mass spectrometer sample tray

T875/1101

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Credit

JOHN MCLEAN / SCIENCE PHOTO LIBRARY JOHN MCLEAN / SCIENCE PHOTO LIBRARY

Caption

Mass spectrometry. Technician loading a sample tray into a time of flight secondary ion mass spectrometer (TOF SIMS). The TOF SIMS is used to analyse the surface of a sample. A pulsed ion beam is used to remove molecules from the subject's surface. The molecules are ionised and accelerated towards a detector. The time it takes them to reach the detector depends on their mass. The advantage of this system is that macromolecules (such as polymers or proteins) are not disintegrated by the beam. TOF SIMS is used in coatings research, microelectronics and surface contamination studies.

Release details

Model release not required. Property release not required.

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