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Separation Science: Supercritical fluids possess liquid-like densities but they are superior to liquids because of their higher diffusivity and lower viscosity. The mild critical parameters and low toxicity of carbon dioxide make it especially attractive as a replacement for toxic organic halogenated solvents. Principles of both supercritical fluid extraction (SFE) and supercritical fluid chromatography (SFC) are under investigation. In the area of SFE, we are studying quantitative trapping and recovery, modified fluid behavior, matrix aids to extraction, and the direct coupling of SFE to spectrometric detectors (e.g., FT-IR and MS) as well as to GC, SFC, and HPLC. In the area of SFC, polymer-coated metal oxide-supported stationary phases, packed capillary columns, coupled spectrometric detection, and gradient elution techniques for highly polar mixtures are of interest. In addition to environmental problems. We have an active interest in extending these newly developed techniques to numerous industry-related problem areas, such as foods, pharmaceuticals, fibers, pulp and paper, polymers and polymer additives
Separation Science: Supercritical fluids possess liquid-like densities but they are superior to liquids because of their higher diffusivity and lower viscosity. The mild critical parameters and low toxicity of carbon dioxide make it especially attractive as a replacement for toxic organic halogenated solvents. Principles of both supercritical fluid extraction (SFE) and supercritical fluid chromatography (SFC) are under investigation. In the area of SFE, we are studying quantitative trapping and recovery, modified fluid behavior, matrix aids to extraction, and the direct coupling of SFE to spectrometric detectors (e.g., FT-IR and MS) as well as to GC, SFC, and HPLC. In the area of SFC, polymer-coated metal oxide-supported stationary phases, packed capillary columns, coupled spectrometric detection, and gradient elution techniques for highly polar mixtures are of interest. In addition to environmental problems. We have an active interest in extending these newly developed techniques to numerous industry-related problem areas, such as foods, pharmaceuticals, fibers, pulp and paper, polymers and polymer additives
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A. M. Sirunyan,A. Tumasyan,W. Adam, F. Ambrogi, T. Bergauer,J. Brandstetter,M. Dragicevic,J. Ero,A. Escalante Del Valle,M. Flechl, R. Fruehwirth,M. Jeitler,
A. M. Sirunyan,A. Tumasyan,W. Adam, F. Ambrogi,E. Asilar, T. Bergauer,J. Brandstetter, E. Brondolin,M. Dragicevic,J. Ero, A. Escalante Del Valle,M. Flechl,
A. M. Sirunyan,A. Tumasyan,W. Adam, F. Ambrogi,E. Asilar, T. Bergauer,J. Brandstetter, E. Brondolin,M. Dragicevic,J. Ero, A. Escalante Del Valle,M. Flechl,
European Physical Journal C: Particles and Fieldsno. 4 (2022): 1-15
A. Tumasyan,W. Adam,J. W. Andrejkovic, T. Bergauer,S. Chatterjee, K. Damanakis,M. Dragicevic,A. Escalante Del Valle,R. Fruhwirth,M. Jeitler, N. Krammer,L. Lechner,
A. M. Sirunyan,A. Tumasyan,W. Adam, F. Ambrogi,E. Asilar, T. Bergauer,J. Brandstetter, E. Brondolin,M. Dragicevic,J. Eroe, A. Escalante Del Valle,M. Flechl,
European Physical Journal Cno. 4 (2022): 1-15
A Tumasyan,W Adam,T Bergauer,M Dragicevic, J Erö,A Escalante Del Valle,R Frühwirth,M Jeitler, N Krammer, L Lechner,D Liko,T Madlener,
Beiträge zur Tabakforschung International/Contributions to Tobacco Researchno. 7 (2019): 329-339
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Beiträge zur Tabakforschung International/Contributions to Tobacco Researchno. 6 (2019): 267-277
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