Atmospheric pressure photoionization using tunable VUV synchrotron radiation

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• 作者：A. Giuliani^a ; ^b ; ^{alexandre.giuliani@synchrotron-soleil.fr} ; J.-L. Giorgetta^a ; J.-P. Ricaud^a ; F. Jamme^a ; ^b ; V. Rouam^a ; F. Wien^a ; O. Lapré ; vote^c ; ^d ; M. Ré ; fré ; giers^a
• 关键词：APPI ; Photoionization ; Atmospheric pressure photoionization ; VUV ; Synchrotron radiation
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2012
• 出版时间：15 May, 2012
• 年：2012
• 卷：279
• 期：Complete
• 页码：114-117
• 全文大小：561 K

文摘

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 AB 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.