Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Manfred Karlowatz"'
Autor:
Boris Mizaikoff, Alexandra Molinelli, Thomas M. Orlando, Alexandr B. Aleksandrov, Christian Müller, Manfred Karlowatz
Publikováno v:
The Journal of Physical Chemistry C. 116:37-43
Studies on particulate quartz and silica films were performed using Fourier transform infrared spectroscopy (FT-IR) via attenuated total reflection (ATR). Based on the fact that measurements in the visible and near-infrared (vis/NIR) spectral range a
Publikováno v:
Analytical Chemistry. 76:2643-2648
Attenuated total reflection mid-infrared spectroscopy is applied for simultaneous detection and quantification of the environmentally relevant analytes benzene, toluene, and the three xylene isomers. The analytes are enriched into a thin polymer memb
Publikováno v:
Analytica Chimica Acta. 496:339-348
This work demonstrates the application of organically modified sol–gels as recognition layers combined with mid-infrared evanescent wave sensors for in situ detection of nitrated organics in aqueous media. Sol–gels were prepared by acid-catalyzed
Publikováno v:
Applied Spectroscopy. 57:591-599
A sub-sea deployable fiber-optic sensor system for the continuous determination of a range of environmentally relevant volatile organic compounds in seawater has been developed. The prototype of a robust, miniaturized Fourier transform infrared (FT-I
Publikováno v:
The Analyst. 128:397-403
For efficient development assessment, and calibration of new chemical analyzers a large number of independently prepared samples of target analytes is necessary. Whereas mixing units for gas analysis are readily available, there is a lack of instrume
Publikováno v:
Applied Spectroscopy. 54:1629-1633
In this work an innovative etching technique for tapering silver halide fibers is introduced. As silver halides form soluble complexes with thiosulfate in aqueous solution, the fiber can be chemically tapered by an etching process, which also warrant
Autor:
Thomas M. Orlando, J. Michael Cathcart, Manfred Karlowatz, Alexandr B. Aleksandrov, Boris Mizaikoff
Publikováno v:
Detection and Remediation Technologies for Mines and Minelike Targets IX.
Attenuated total reflection (ATR) spectroscopy is a well established optical technique investigating fundamental molecular vibrations in the mid-infrared (MIR) spectral regime for a wide variety of samples including liquids, thin films and powders. I
Autor:
Y. Reichlin, W. Konz, K. Staubmann, Josep Maria Bayona, Reinhard Niessner, Manfred Karlowatz, N. Fleischmann, A. Brandenburg, J. Lucas, Bruno Bureau, Roza Allabashi, Michael Jakusch, Boris Mizaikoff, Karine Michel, Thomas Baumann, Abraham Katzir, Catherine Boussard-Plédel, H. Steiner, Martin Kraft
Publikováno v:
Applied spectroscopy. 57(6)
A prototype mid-infrared sensor system for the determination of volatile organic pollutants in groundwater was developed and tested under real-world conditions. The sensor comprises a portable Fourier transform infrared spectrometer, coupled to the s
Autor:
Boris Mizaikoff, Thomas M. Orlando, Ricardo Campbell, J. Michael Cathcart, Manfred Karlowatz, Robert D. Bock
Publikováno v:
SPIE Proceedings.
This paper presents preliminary results of an investigation into the impact of buried objects on the environmental properties and electro-optical spectral characteristics of terrain features. This study focused on the analyses of various sensor infor
Publikováno v:
SPIE Proceedings.
The emerging demands of marine monitoring have initiated increased efforts to develop sensor systems capable of screening organic pollutants in seawater. The construction of a sensor system based on a Fourier transform infrared (FT-IR) spectrometer c