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Πεδίο DCΤιμήΓλώσσα
dc.contributor.authorDe La Cruz, Armah A.-
dc.contributor.authorDionysiou, Dionysios Demetriou D.-
dc.contributor.authorAntoniou, Maria G.-
dc.date.accessioned2013-01-17T11:45:19Zen
dc.date.accessioned2013-05-16T06:25:19Z-
dc.date.accessioned2015-12-02T10:13:57Z-
dc.date.available2013-01-17T11:45:19Zen
dc.date.available2013-05-16T06:25:19Z-
dc.date.available2015-12-02T10:13:57Z-
dc.date.issued2010-10-01-
dc.identifier.citationEnvironmental Science and Technology, 2010, vol. 44, no. 19, pp. 7238-7244en_US
dc.identifier.issn15205851-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/1351-
dc.description.abstractDegradation of the cyanotoxin microcystin-LR (m/z 995.5) using sulfate radical-based advanced oxidation technologies (AOTs) and identification of reaction intermediates formed during treatment were investigated in this study. To the best of our knowledge this is the first study on the degradation and identification of reaction intermediates for any cyanotoxin with SO4•−. Tandem mass spectrometry designated the formation of nine (as m/z) reaction intermediates with four of them (m/z 1011.5, 1027.5, 1029.5, and 1045.5) having multiple peaks in the TIC chromatogram. New peaks that were not observed with hydroxyl radical formed during photocatalytic oxidation (PCO) have been detected such as m/z 1045.5. The initially formed intermediates involved the oxidation of the unsaturated bonds of MC-LR especially the diene bonds located on the chain of the Adda amino acid. Subsequent intermediates implicated the oxidative cleavage of small functional groups (i.e., —COOH), up to the complete removal of the Adda chain. The electrophilic character of SO4•− is proven by the multihydroxylation of the aromatic ring. Toward the end of treatment, simultaneous oxidation of the Adda chain and the cyclic structure occurred without the formation of linear products.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofEnvironmental Science & Technologyen_US
dc.rights© American Chemical Societyen_US
dc.subjectDegradationen_US
dc.subjectRadicalen_US
dc.subjectActivated persulfateen_US
dc.titleIntermediates and reaction pathways from the degradation of microcystin-lr with sulfate radicalsen_US
dc.typeArticleen_US
dc.affiliationUniversity of Cincinnatien
dc.collaborationUniversity of Cincinnatien_US
dc.collaborationTechnical University of Denmarken_US
dc.collaborationU.S. Environmental Protection Agencyen_US
dc.subject.categoryOther Engineering and Technologiesen_US
dc.journalsSubscriptionen_US
dc.countryUnited Statesen_US
dc.countryDenmarken_US
dc.countryCyprusen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1021/es1000243en_US
dc.dept.handle123456789/54en
dc.relation.issue19en_US
dc.relation.volume44en_US
cut.common.academicyear2010-2011en_US
dc.identifier.spage7238en_US
dc.identifier.epage7244en_US
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn1520-5851-
crisitem.journal.publisherAmerican Chemical Society-
crisitem.author.deptDepartment of Chemical Engineering-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-0738-6068-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
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