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Atmospheric pressure photoionization using tunable VUV synchrotron radiation

Abstract : We report here the first coupling of an atmospheric pressure photoionization (APPI) source with a synchrotron radiation beamline in the vacuum ultra-violet (VUV). A commercial APPI source of a QStar Pulsar i from Sciex was modified to receive photons from the DISCO beamline at the SOLEIL synchrotron radiation facility. Photons are delivered at atmospheric pressure in the 4-20 eV range. The advantages of this new set up, termed SR-APPI, over classical APPI are spectral purity and continuous tunability. The technique may also be used to perform tunable photoionization mass spectrometry on fragile compounds difficult to vaporize by classical methods. (C) 2011 Elsevier B.V. All rights reserved.
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Alexandre Giuliani, J. -L. Giorgetta, J. -P. Ricaud, Frederic Jamme, V. Rouam, et al.. Atmospheric pressure photoionization using tunable VUV synchrotron radiation. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2012, 279, pp.114 - 117. ⟨10.1016/j.nimb.2011.10.038⟩. ⟨hal-02650785⟩



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