Optical methods play an important role in process analytical technologies (PAT). Four examples of optical process and quality sensing (OPQS) are presented, which are based on three important experimental techniques: near-infrared absorption, luminescence quenching, and a novel method, photon density wave (PDW) spectroscopy. These are used to evaluate four process and quality parameters related to beer brewing and polyurethane (PU) foaming processes: the ethanol content and the oxygen (O2) content in beer, the biomass in a bioreactor, and the cellular structures of PU foam produced in a pilot production plant.
| Identifer | oai:union.ndltd.org:Potsdam/oai:kobv.de-opus-ubp:1219 |
| Date | January 2006 |
| Creators | Engelhard, Sonja, Kumke, Michael U., Löhmannsröben, Hans-Gerd |
| Publisher | Universität Potsdam, Mathematisch-Naturwissenschaftliche Fakultät. Institut für Chemie |
| Source Sets | Potsdam University |
| Language | English |
| Detected Language | English |
| Type | Postprint |
| Format | application/pdf |
| Source | Analytical and Bioanalytical Chemistry.- ISSN 1618-2650. - 384 (2006), 5, p. 1107 - 1112 |
| Rights | http://opus.kobv.de/ubp/doku/urheberrecht.php |
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