Publikation:
Formation, classification and identification of non-extractable residues of 14C-labelled ionic compounds in soil

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dc.contributor.authorClaßen, Daniela
dc.contributor.authorSiedt, Martin
dc.contributor.authorNguyen, Kim Thu
dc.contributor.otherAckermann, Juliane
dc.date.accessioned2024-06-16T14:34:49Z
dc.date.available2024-06-16T14:34:49Z
dc.date.issued2019
dc.description.abstractThe influence of an ionic functional group on the fate of chemicals in the environment, especially the formation of non-extractable residues (NER), has not been systematically investigated. Using 4-n-dodecylphenol[phenylring-14C(U)], 4-n-dodecylbenzenesulfonicacid[phenylring-14C(U)] sodiumsalt (14C-DS-) and 4-n-dodecylbenzyltrimethylammoniumchloride[phenylring-14C(U)] (14C-DA+) all with a high structural similarity, the formation, classification and identification of NER of negatively (14C-DS-), positively (14C-DA+) and uncharged (14C-DP) chemicals were investigated in a sterilized and non-sterilized soil. After 84 days of incubation in non-sterile soil, 40.6%, 21.7% and 33.5% of the applied radioactivity (AR) of 14C-DP, 14C-DS- and 14C-DA+, respectively, were converted to NER. In contrast, in sterile soil NER formation was markedly lower. The NER were further investigated with respect to sequestered, covalently bound and biogenic residues (i.e. NER types I, II, and III). Silylation of 14C-DP, 14C-DS- and 14C-DA+ derived NER released 3.0-23.2% AR, indicating that these were sequestered, whereas the residual NER (12.9-33.1% AR) was covalently bound to the soil. Analysis of extracts derived by silylation showed that 14C-DP, but neither 14C-DS- nor 14C-DA+, were released by silylation, suggesting that DP might be part of the sequestered NER. Acid hydrolysis of the NER containing soil and subsequent analysis of soil extracts for 14C-aminoacids indicated that 2.5-23.8% AR were biogenic residues. Most DP and DS- derived NER were biogenically or covalently bound, whereas DA+ predominantly forms sequestered NER in soil. From these results we propose that chemicals forming high amounts of NER should be investigated regarding types I-III NER because sequestered parent compounds should be considered in persistence assessments. © 2019 The Authors. Published by Elsevier Ltd.en
dc.format.extent1 Onlineresource (Seiten 164-170)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-405
dc.identifier.urihttps://openumwelt.de/handle/123456789/5047
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleFormation, classification and identification of non-extractable residues of 14C-labelled ionic compounds in soil
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleChemosphere
local.bibliographicCitation.originalDOI10.1016/j.chemosphere.2019.05.038
local.bibliographicCitation.volume232 (2019)
local.collectionAufsätze
local.contributor.authorId(DE-588)1192947800
local.contributor.authorId02181635
local.contributor.authorId02181636
local.contributor.otherId02152840
local.identifier.catalogId02469150
local.ingest.leader05211naa a2200000uu 4500
local.jointTitleFORMATION CLASSIFICATION AND IDENTIFICATION OF NONEXTRACTABLE RESIDUES OF 14CLABELLED IONIC COMPOUNDS IN SOIL
local.reviewtrue
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relation.isAuthorOfPublication37eefbcf-d144-4f1f-9d37-bc3900d4f328
relation.isAuthorOfPublication.latestForDiscovery37eefbcf-d144-4f1f-9d37-bc3900d4f328
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