The prototype ion trap contains hundreds of inlets and outlets, mimicking how biology moves things into and out of cell nuclei. Credit: Lori Chertoff/The Rockefeller University When J. J. Thomson ...
Just how far mass spectrometry—the use of tools measuring the mass-to-charge ratio (m/z) of one or more molecules present in a sample—has progressed over the past century can be seen in a new exhibit ...
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