@article{KanngiesserHahnWilkeetal.2004,
  author    = {Kanngiesser, Birgit and Hahn, O. and Wilke, Max and Nekat, B. and Malzer, Wolfgang and Erko, Alexei},
  title     = {Investigation of oxidation and migration processes of inorganic compounds in ink-corroded manuscripts},
  issn      = {0584-8547},
  year      = {2004},
  abstract  = {We studied the oxidation and migration processes of inorganic compounds in iron gall inks with a combination of micro X-ray fluorescence analysis (micro-XRF) and micro X-ray absorption near edge structure spectroscopy (micro-XANES). With elemental mapping by micro-XRF, the correlation of the minor elements in the ink to the major element Fe was investigated. Along concentration profiles of Fe, micro-XANES measurements were carried out in order to determine the oxidation state and the local environment. With the help of model inks, we could show that Cu is a further important element in the paper degradation process due to iron gall ink corrosion. (C) 2004 Elsevier B.V. All rights reserved},
  language  = {en}
}
@article{SchmitzMoellerWilkeetal.2009,
  author    = {Schmitz, Sylvia and Moeller, Andreas and Wilke, Max and Malzer, Wolfgang and Kanngiesser, Birgit and Bousquet, Romain and Berger, Alfons and Schefer, Senecio},
  title     = {Chemical U-Th-Pb dating of monazite by 3D-Micro X-ray fluorescence analysis with synchrotron radiation},
  issn      = {0935-1221},
  doi       = {10.1127/0935-1221/2009/0021-1964},
  year      = {2009},
  abstract  = {A confocal set-up for three-dimensional (3D) micro X-ray fluorescence (micro-XRF) was used at the mySpot beamline at BESSY II, which allows compositional depth profiling for various applications. We present results obtained with a confocal 3D micro-XRF set-up for chemical age dating using the U, Th and Pb concentrations of monazite within rock thin sections. The probing volume was determined to be approximately 21 x 21 x 24 mu m(3) for W-L alpha using an excitation energy of 19 keV. The relative detection limits particularly for Pb are below 10 ppm (for Counting times},
  language  = {en}
}