Browsing by Subject "Time-of-flight mass spectrometry"
Now showing items 1-9 of 9
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(Texas A&M University. Libraries, 1980)[^252]Cf-plasma desorption mass spectrometry is shown to be an excellent method for the analysis of chlorophylls in aggregated states. Investigation provide experimental evidence for the view that chlorophylls can be ...
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(Texas A&M University. Libraries, 1980)A new method of determining the base sequence, the purity and the molecular weight of a chemically protected ribo- or deoxyribooligonucleotide is described. Using the method ²⁵²Cf-plasma desorption mass spectrometry positive ...
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(Texas A&M University. Libraries, 1990)A new experimental method has been developed for studying negative secondary ion (SI) emission from solid surfaces bombarded by polyatomic primary ions of 5 to 30 keV. The method is based on the time-of-flight (TOF) analysis ...
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(Texas A&M University. Libraries, 1991)Coincidence counting has been combined with time-of-flight mass spectrometry (TOF-MS) in a study of the relationships of secondary ions desorbed by keV and MeV energy primary ions. Secondary ions are in coincidence with ...
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(Texas A&M University. Libraries, 1992)Multielectron removal from an atom or molecule may be accomplished with high efficiency by the impact of a fast, highly-charged, heavy ion. When a diatomic molecule suffers the loss of electrons, it will generally dissociate ...
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(Texas A&M University. Libraries, 1979)Electron-hydrogen atom scattering is one of the most fundamental electron-atom scattering problems, providing excellent grounds for testing various theoretical approximation methods. Since the target atom wave functions ...
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(Texas A&M University. Libraries, 1988)A detailed study of ionization and fragmentation in molecular gas targets by 2.75 MeV H[+] and 40 MeV Ar[13+] ions has been performed using the time-of-flight (TOF) method. Ionization of molecular gases by 2.75 MeV H[+] ...
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(Texas A&M University. Libraries, 1979)
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(Texas A&M University. Libraries, 1991)The goal of this study was to explore sample-projectile interactions by examining secondary ion (SI) yields in an event-by-event impact and detection mode. Cluster secondary ion mass spectrometry (SIMS) was evaluated in ...