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Abiotic degradation of antibiotic ionophores
Toxicology Laboratory, Analytical Biosciences, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen.
Eurofins Denmark A/S, Environment, Vejen.
Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Plattformen för molekylär analys. Högskolan Kristianstad, Fakulteten för naturvetenskap, Avdelningen för miljö- och biovetenskap. Högskolan Kristianstad, Fakulteten för naturvetenskap, Forskningsmiljön MoLab.ORCID-id: 0000-0003-2283-2927
Toxicology Laboratory, Analytical Biosciences, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen.
Vise andre og tillknytning
2013 (engelsk)Inngår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 182, s. 177-183Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Hydrolytic and photolytic degradation were investigated for the ionophore antibiotics lasalocid, monensin, salinomycin, and narasin. The hydrolysis study was carried out by dissolving the ionophores in solutions of pH 4, 7, and 9, followed by incubation at three temperatures of 6, 22, and 28 °C for maximum 34 days. Using LC–MS/MS for chemical analysis, lasalocid was not found to hydrolyse in any of the tested environments. Monensin, salinomycin, and narasin were all stable in neutral or alkaline solution but hydrolysed in the solution with a pH of 4. Half-lives at 25 °C were calculated to be 13, 0.6, and 0.7 days for monensin, salinomycin, and narasin, respectively. Absorbance spectra from each compound indicated that only lasalocid is degraded by photolysis (half-life below 1 h) due to an absorbance maximum around 303 nm, and monensin, salinomycin, and narasin are resistant to direct photolysis because they absorb light of environmentally irrelevant wavelengths.

sted, utgiver, år, opplag, sider
2013. Vol. 182, s. 177-183
Emneord [en]
Ionophore, Degradation, Hydrolysis, Photolysis, LC–MS/MS
HSV kategori
Identifikatorer
URN: urn:nbn:se:hkr:diva-10820DOI: 10.1016/j.envpol.2013.06.040ISI: 000326661700021PubMedID: 23917220OAI: oai:DiVA.org:hkr-10820DiVA, id: diva2:639437
Tilgjengelig fra: 2013-08-07 Laget: 2013-08-07 Sist oppdatert: 2019-07-03bibliografisk kontrollert

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