Biosensor for rapid phosphate monitoring in sequencing batch reactor (SBR) system
2003 (English)In: Biosensors & bioelectronics, ISSN 0956-5663, E-ISSN 1873-4235, Vol. 19, no 3, 233-237 p.Article in journal (Refereed) Published
A thick-film phosphate biosensor based on hydrogel immobilized pyruvate oxidase (POD) has been developed for rapid phosphate process control monitoring in an experimental sequencing batch reactor (SBR) system. We have employed a phosphate biosensor in an off-line monitoring of phosphate concentrations in a bench scale SBR. Measurements with biosensor show a good correlation (r2=0.98) with those of commercial colorimetric phosphate testing kits. The signal response time was 1 min with a detection limit of 5 microM. The biosensor method showed a good operational stability, needed less experimental procedures and a small sample size (approximately 20 microl). This allows its practical application for rapid phosphate measurements to obtain real time process data in a SBR system.
Place, publisher, year, edition, pages
Elsevier, 2003. Vol. 19, no 3, 233-237 p.
Phosphate biosensor; Pyruvate oxidase; Thick-film electrode; Sequencing batch reactor (SBR); Flow-injection-analysis (FIA)
IdentifiersURN: urn:nbn:se:liu:diva-92117DOI: 10.1016/S0956-5663(03)00209-4PubMedID: 14611759OAI: oai:DiVA.org:liu-92117DiVA: diva2:620165