1. Chemical Imaging and Speciation, CENBG, University of Bordeaux, UMR 5797, 33175 Gradignan, France
2. CNRS, IN2P3, CENBG, UMR 5797, 33175 Gradignan, France
3. Division of Pharmacology and Toxicology; Institute for Cellular and Molecular Biology and Institute for Neuroscience, University of Texas, Austin, Texas 78712, United States
4. Deutsches Elektronen Synchrotron DESY, Notkestr. 85, Hamburg 22607, Germany
5. European Synchrotron Radiation Facility, 38000 Grenoble, France