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Optical Analytics in the Capital Region Berlin-Brandenburg

  • Text
  • Brandenburg
  • Technology
  • Analysis
  • Aerospace
  • Astronomy
  • Technology
  • Analysis
  • Bioanalytics
  • Photonics
  • Berlin
  • Optical
  • Analysis
  • Measurement
  • Materials
  • Spectroscopy
  • Adlershof
  • Technologies

42 Environmental

42 Environmental Analysis In addition, flow cytometry, fluorescence and UV spectroscopy methods are used to develop rapid tests to identify microorganisms. www.atb-potsdam.de/en Optical Marine Remote Sensing Element map of an autumn leaf taken with the M4 TORNADO micro-XRF system from Bruker © Bruker Nano GmbH of biological samples quickly and with minimal sample preparation. They provide valuable information about environmental influences. In addition, they are also used to analyze building materials, conduct geological research, as well as in forensics and archeometry. Moreover, Bruker is the first company able to offer all commonly used X-ray analysis procedures (EDS, WDS, EBSD, Micro-XRF and micro-CT) from a single source. The working group on “Marine Remote Sensing” within the Earth Observation Center (EOC) at DLR is also represented at the Adlershof site. This working group focuses on using optical methods to (remotely) detect components in variously sized water bodies. Whereas non-imaging sensors are employed on board ships or in the water itself, so-called imaging spectrometers are used on aircraft and satellites. The latter can also provide spatial images for each spectral band. Remote sensing is the only technology that can be employed to monitor the high spatial and temporal dynamics of water bodies since it provides synoptic and repeatable overviews over large areas. The MOS-IRS imaging spectrometer developed by DLR (and flown on the IRS-P3 satellite from 1996 to 2005) was, as the first instrument of its kind, primarily used www.bruker-nano.de Rapid Detection of Organic Contaminations The Leibniz Institute for Agricultural Engineering Potsdam-Bornim e.V. investigates optical methods for the rapid detection of organic contamination. The focus is on the use of optical technologies to non-destructively determine the quality parameters of plant products. The methods investigated include: • Hyperspectral analysis • Chlorophyll – fluorescence – intensity measurements • Portable spectrophotometer • Raman spectroscopy Concentrations of chlorophyll (u.l.), suspended matter (u.r.), yellow substance (l.l.) and the resulting water transparency (l.r.) in the Baltic Sea, derived from MERIS data, July 1, decade 2008 © DLR

Environmental Analysis 43 for basic research and to demonstrate the feasibility of quantitative satellite remote sensing. It was followed by the imaging spectrometer MERIS on board the ESA environmental satellite ENVISAT, which marked the transition to regular delivery of data for environmental monitoring by government authorities and aimed at confirming adherence to European guidelines as part of the COPERNICUS program. Through the launch of Sentinel-3 in early 2016 a new more powerful successor of MERIS will be in orbit for furthermore detailed mapping of water bodies. To this end, ISAS Berlin developed an Echelle Spectrograph equipped with a greateyes Peltier-cooled CCD surface receiver. This makes it possible, for instance, to determine important plasma parameters such as the temperature of different species or electron density. The latter can be used for characterization and further development of the plasma source. www.isas.de/en | www.greateyes.de www.dlr.de/eoc/en Plasma Spectroscopy At the Leibniz-Institute for Analytical Sciences – ISAS - e.V. (ISAS) in Dortmund, a miniaturized plasma with a liquid electrode, has been developed which can be operated in continuous flow operation requiring only small sample volumes. This system allows the determination of chemical elements diluted in the liquid electrode using optical emission spectroscopy. Trace elements in very small sample amounts can also be detected with the high-resolution absorption spectroscopy developed at ISAS Berlin that uses a continuous plasma source as background emitter. With both analytical techniques, the extremely fine-structured spectra must be measured with high-spectral resolution, sensitivity and accuracy. Particle Identification Under the project entitled “Photon Density Wave (PDW) Spectroscopy,” innoFSPEC Potsdam is developing a unique fiber-optical method to analyze e.g. particle sizes in strongly light-scattering, opaque materials. In close cooperation with scientific and industrial partners, PDW technology is being applied in fields such as foodstuffs and polymer chemistry, nanotechnology, and biomedicine. In 2014 this technology was awarded with the Bunsen-Kirchhoff Prize funded by the GDCh (Gesellschaft Deutscher Chemiker). In addition, young scientists founded the spin-off company PDW Analytics to explore commercial opportunities for the technology. www.pdw-analytics.de | www.innofspec.de/en rap.ID. is following a somewhat more general approach to particle identification. It uses its technology to identify foreign particles from parenterals or injectables as well as to determine the particle material in implants and to carry out studies on technical cleanliness. To do so, the particles are mainly isolated using membrane filtration. Special methods optimized for material characterization of micron particles (FT/IR, REM/EDX, Raman and LIBS spectroscopy) make it possible to then identify practically all materials. A complete microscopic documentation of the particles is included. Echelle absorption spectrum of a phosphorus oxide sample to determine the concentration of phosphorus © ISAS www.rap-id.com | www.particle-identification.com

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