OPQS – optical process and quality sensing : exemplary applications in the beerbrewing and polyurethane foaming processes
- 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.
| Verfasserangaben: | Sonja Engelhard, Michael Uwe KumkeORCiDGND, Hans-Gerd LöhmannsröbenORCiDGND |
|---|---|
| URN: | urn:nbn:de:kobv:517-opus-12191 |
| Schriftenreihe (Bandnummer): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (paper 004) |
| Publikationstyp: | Postprint |
| Sprache: | Englisch |
| Erscheinungsjahr: | 2006 |
| Veröffentlichende Institution: | Universität Potsdam |
| Datum der Freischaltung: | 05.02.2007 |
| Freies Schlagwort / Tag: | NIR spectroscopy; beer; biomass; fluorescence quenching; foam analysis; photon density wave spectroscopy; process analytical technology |
| Quelle: | Analytical and Bioanalytical Chemistry.- ISSN 1618-2650. - 384 (2006), 5, p. 1107 - 1112 |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
| Externe Anmerkung: | Original publication is available at www.springerlink.com: Analytical and Bioanalytical Chemistry - ISSN 1618-2650. - 384 (2006), 5, S. 1107 - 1112 doi: 10.1007/s00216-005-3364-4 |
