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Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
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Laser-Fluorescence Mass Spectroscopy.
Physical Review Letters, 1983Measurements of ion cyclotron-resonance frequencies in a Penning trap, by a laser fluorescence technique, are described. This technique has been applied to indirect measurements of the proton-to-electron mass ratio and the $^{9}\mathrm{Be}^{+}$ electron ${g}_{J}$ factor. It is found that $\frac{{m}_{p}}{{m}_{e}}=1836.15238(62)$ (0.34 ppm) and ${g}_{J}(^
D. J. Wineland +2 more
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Zeitschrift für Physik A Hadrons and Nuclei, 1992
The mass of13Be has been measured with the reaction13C(14C,14O)13Be at ELab=337 MeV. A Q-value of Q0=−37.02(5) MeV was obtained and the mass excess is M.E.=35.16(5) MeV. If the observed line corresponds to the ground state,13 Be is particle unstable with respect to the oneneutron emission by 2.01 MeV.
A. N. Ostrowski +12 more
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The mass of13Be has been measured with the reaction13C(14C,14O)13Be at ELab=337 MeV. A Q-value of Q0=−37.02(5) MeV was obtained and the mass excess is M.E.=35.16(5) MeV. If the observed line corresponds to the ground state,13 Be is particle unstable with respect to the oneneutron emission by 2.01 MeV.
A. N. Ostrowski +12 more
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Quadrupole mass spectroscopy of neon
Journal of Mass Spectrometry, 2012isused to carry out the experiments. All measurements wereperformed at room temperature. Neon (Linde Gas, >99.999%) isoffered via backfilling the chamber using a bakeable leak valve.The gas line is evacuated and can be heated in order to ensurecleanness.
Sebastian, Dahle +1 more
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Mass spectroscopy at high mass
Fresenius' Zeitschrift für analytische Chemie, 1986High mass in mass spectroscopy is defined as being the region above m/z 10000. Ionization techniques, methods of mass analysis and ion detection are reviewed. A general mechanism of formation of gaseous ions from nonvolatile, thermally labile compounds is put forward.
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ChemInform Abstract: Mass Spectroscopy
ChemInform, 1995AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
C. R. ENZELL, S. BACK
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Spectrochimica Acta Part B: Atomic Spectroscopy, 1984
Abstract Laser Mass Spectroscopy (LMS) is an analytical technique for (micro) trace analysis of all elements in practically all kind of materials. In this report the experimental set-up and the mechanism of ionisation by laser impact are briefly described. Two examples of preliminary nature are given to illustrate some features of LMS.
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Abstract Laser Mass Spectroscopy (LMS) is an analytical technique for (micro) trace analysis of all elements in practically all kind of materials. In this report the experimental set-up and the mechanism of ionisation by laser impact are briefly described. Two examples of preliminary nature are given to illustrate some features of LMS.
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Resolving Mass Spectroscopy Problems
Physics Bulletin, 1988Inductively coupled plasma mass spectrometry (ICP-MS) combines diverse areas of applied physics – ion sampling from atmospheric pressure plasmas, focusing of low energy ion beams, quadrupole mass analysis, wide dynamic range ion detection and differential vacuum systems.
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Superconductivity for Mass Spectroscopy
IEICE Transactions on Electronics, 2007Time-of-Flight Mass Spectroscopy (TOF-MS) with superconducting detectors has two advantages over MS with conventional ion detectors. First, it is coverage for a very wide range of molecule weight over 1,000,000. Secondly, kinetic energies of accelerated molecules can be measured at impact events one by one.
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