Publications

Presseinformation 091/2009 des KIT: Messzelle spart Energie
G. Wiegand und S. Johnson, B. Zehnder
Maßgeschneidertes NIR-inline-Monitoring-Modul - Einsparung bei der Naturstoffextraktion und Teilereinigung mit CO₂, CITplus 7/8, 41-43 (2009)
Dinjus, E.; Johnsen, S.; Wiegand, G.; Zehnder, B.
Mobile NIR in-line device for monitoring of supercritical CO₂ based processes.
Congress on Chemical Technology, Warszawa, PL, June 22-25, 2009
Dinjus, E.; Johnsen, S.; Wiegand, G.; Zehnder, B.
Mobile NIR in-line device for monitoring of supercritical CO₂ based processes.
10th Internat.Conf.on Carbon Dioxide Utilization (ICCDU 10), Tianjin, China, May 17-21, 2009
Wiegand, G.; Johnsen, S.; Zehnder, B.
Mobile NIR in-line device for monitoring of supercritical CO₂ based processes.
Achema 2009 : 29.Internat.Ausstellungskongress für Chemische Technik, Umweltschutz und Biotechnologie, Frankfurt, 11.-15.Mai 2009
Wiegand, G.; Johnsen, S.; Zehnder, B.
Mobiles NIR-inline-Monitoring für Prozesse basierend auf überkritischem CO₂.
ProcessNet Jahrestagung 2008, Karlsruhe, 7.-9.Oktober 2008
Wiegand, G.; Johnsen, S.; Michel, S.; Zehnder, B.
Mobile NIR in-line device for monitoring of supercritical CO₂ based processes.
11th European Meeting on Supercritical Fluids, Barcelona, E, May 4-7, 2008
Bürck, J.; Wiegand, G.; Roth, S.; Mathieu, H.; Krämer, K.
Monitoring of technical oils in supercritical CO₂ under continuous flow conditions by NIR spectroscopy and multivariate calibration.
Talanta, 68(2006) S.1497-1504
Wiegand, G.; Ederer, H.J.; Bürck, J.; Roth, S.; Mathieu, H.; Krämer, K.
In-line NIR reaction monitoring and kinetic modelling for the partial oxidation of hexanal to hexanoic acid in supercritical carbon dioxide.
Internat. Symp.on Supercritical Fluids (ISSF 2005), Orlando, Fla., May 1-4, 2005
Bürck, J.; Wiegand, G.; Roth, S.; Mathieu, H.; Krämer, K.
Quantitative in-line analysis in supercritical CO₂ using fibre-optic NIR spectroscopy and multivariate calibration: a potential method for monitoring continuous flow processes.
Journal of Near Infrared Spectroscopy, 12(2004) S.29-36
Wiegand, G.; Bürck, J.; Roth, S.; Mathieu, H.; Krämer, K.
Reaction monitoring in supercritical carbon dioxide-based processes using inline NIR spectroscopy and on-line gas chromatography.
Dechema/GVC-Jahrestagungen, Karlsruhe, 12.-14.Oktober 2004
Wiegand, G.; Bürck, J.; Roth, S.; Mathieu, H.; Krämer, K.
Development of an in-line NIR monitoring method for supercritical carbon dioxide-based extraction processes.
Proc.of the 6th Internat.Symp.on Supercritical Fluids, Versailles, F, April 28-30, 2003, Tome 1: Natural Products - Process and Equipment Development S.599-604, Internat.Soc.for the Advancement of Supercritical Fluids, 2003
Bürck, J.; Wiegand, G.; Roth, S.; Mathieu, H.; Krämer, K.
In-line analysis in supercritical CO₂-based processes using NIR spectroscopy with a fiber-optic interface.
Euroanalysis 12, Dortmund, September 8-13, 2002
Book of Abstracts S.153
Wiegand, G.; Bürck, J.; Roth, S.; Mathieu, H.; Krämer, K.
Combination of phase equilibria and NIR measurements in supercritical carbon dioxide for on-line process analysis.
Proc.of the 4th Internat.Symp.on High Pressure Process Technology and Chemical Engineering, Venezia, I, September 22-25, 2002
Chemical Engineering Transactions, 2(2002) S.579-84
Wiegand, G.; Bürck, J.; Roth, S.; Mathieu, H.; Krämer, K.
Phase equilibria measurements in supercritical carbon dioxide using fiber-optic NIR spectroscopy and GC.
7th IUPAC Conf.on Chemical Thermodynamics (ICCT 2002), Rostock, July 28 - August 2, 2002
Wiegand, G.
Water and carbon dioxide at high pressures: properties and applications. Chemical Processes and Reactions under Extreme or Non-Classic Conditions
Luxembourg : Office for Official Publications of the European Communities, 1998
S.3-10
G. Wiegand, S. Johnsen, B. Zehnder:
Mobile NIR-inline monitoring device for processes with CO₂.
Prep. Paper – J. Am. Chem. Soc., Div. Fuel Chem. 2010 (55) 77-78