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mass spectrum |
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mass spectrum [′mas ′spek·trəm] (particle physics) A plot of masses of elementary particles, including unstable states. Also known as particle spectrum. (physics) A display, record, or plot of the distribution in mass, or in mass-to-charge ratio, of ionized atoms, molecules, or molecular fragments. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Target analytes were identified by matching the mass spectra acquired from the sample to the mass spectral library from the National Institute of Standards and Technology (Gaithersburg, MD). Mass spectra of each spot were obtained by scanning 650-4,500 m/z in MS-positive ion reflectron mode on a Model 4700 MALDI-TOF-TOF-MS Proteomics Analyzer (Applied Biosystems). This gives good mass spectra with the advantage that the spectrum is the same at all points on the target, that is, "sweet spots" (defined as regions giving especially strong analyte signal) are eliminated. |
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