Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1786
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dc.contributor.authorDuester, Lars-
dc.contributor.authorFabricius, Anne-Lena-
dc.contributor.authorJakobtorweihen, Sven-
dc.contributor.authorPhilippe, Allan-
dc.contributor.authorWeigl, Florian-
dc.contributor.authorWimmer, Andreas-
dc.contributor.authorSchuster, Michael-
dc.contributor.authorNazar, Muhammad Faizan-
dc.date.accessioned2018-10-24T07:32:57Z-
dc.date.available2018-10-24T07:32:57Z-
dc.date.issued2016-08-24-
dc.identifier.citationAnalytical and bioanalytical chemistry 27 (408): 7551-7557 (2016-11)de_DE
dc.identifier.issn1618-2650de_DE
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1789-
dc.description.abstractCoacervate-based techniques are intensively used in environmental analytical chemistry to enrich and extract different kinds of analytes. Most methods focus on the total content or the speciation of inorganic and organic substances. Size fractionation is less commonly addressed. Within coacervate-based techniques, cloud point extraction (CPE) is characterized by a phase separation of non-ionic surfactants dispersed in an aqueous solution when the respective cloud point temperature is exceeded. In this context, the feature article raises the following question: May CPE in future studies serve as a key tool (i) to enrich and extract nanoparticles (NPs) from complex environmental matrices prior to analyses and (ii) to preserve the colloidal status of unstable environmental samples? With respect to engineered NPs, a significant gap between environmental concentrations and size- and element-specific analytical capabilities is still visible. CPE may support efforts to overcome this "concentration gap" via the analyte enrichment. In addition, most environmental colloidal systems are known to be unstable, dynamic, and sensitive to changes of the environmental conditions during sampling and sample preparation. This delivers a so far unsolved "sample preparation dilemma" in the analytical process. The authors are of the opinion that CPE-based methods have the potential to preserve the colloidal status of these instable samples. Focusing on NPs, this feature article aims to support the discussion on the creation of a convention called the "CPE extractable fraction" by connecting current knowledge on CPE mechanisms and on available applications, via the uncertainties visible and modeling approaches available, with potential future benefits from CPE protocols.en
dc.language.isoende_DE
dc.publisherSpringerde_DE
dc.relation.ispartofAnalytical and bioanalytical chemistryde_DE
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.subjectCloud point extractionde_DE
dc.subjectCoacervate-based techniquesde_DE
dc.subjectColloidsde_DE
dc.subjectEnrichmentde_DE
dc.subjectNanoparticlesde_DE
dc.subjectSample preservationde_DE
dc.subject.ddc530: Physikde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleCan cloud point-based enrichment, preservation, and detection methods help to bridge gaps in aquatic nanometrology?de_DE
dc.typeArticlede_DE
dc.identifier.urnurn:nbn:de:gbv:830-88223206-
dc.identifier.doi10.15480/882.1786-
dc.type.diniarticle-
dc.subject.ddccode530-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-88223206de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1789-
tuhh.abstract.englishCoacervate-based techniques are intensively used in environmental analytical chemistry to enrich and extract different kinds of analytes. Most methods focus on the total content or the speciation of inorganic and organic substances. Size fractionation is less commonly addressed. Within coacervate-based techniques, cloud point extraction (CPE) is characterized by a phase separation of non-ionic surfactants dispersed in an aqueous solution when the respective cloud point temperature is exceeded. In this context, the feature article raises the following question: May CPE in future studies serve as a key tool (i) to enrich and extract nanoparticles (NPs) from complex environmental matrices prior to analyses and (ii) to preserve the colloidal status of unstable environmental samples? With respect to engineered NPs, a significant gap between environmental concentrations and size- and element-specific analytical capabilities is still visible. CPE may support efforts to overcome this "concentration gap" via the analyte enrichment. In addition, most environmental colloidal systems are known to be unstable, dynamic, and sensitive to changes of the environmental conditions during sampling and sample preparation. This delivers a so far unsolved "sample preparation dilemma" in the analytical process. The authors are of the opinion that CPE-based methods have the potential to preserve the colloidal status of these instable samples. Focusing on NPs, this feature article aims to support the discussion on the creation of a convention called the "CPE extractable fraction" by connecting current knowledge on CPE mechanisms and on available applications, via the uncertainties visible and modeling approaches available, with potential future benefits from CPE protocols.de_DE
tuhh.publisher.doi10.1007/s00216-016-9873-5-
tuhh.publication.instituteThermische Verfahrenstechnik V-8de_DE
tuhh.identifier.doi10.15480/882.1786-
tuhh.type.opus(wissenschaftlicher) Artikelde
tuhh.institute.germanThermische Verfahrenstechnik V-8de
tuhh.institute.englishThermische Verfahrenstechnik V-8de_DE
tuhh.gvk.hasppnfalse-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.driverarticle-
dc.rights.ccbyde_DE
dc.rights.ccversion4.0de_DE
dc.type.casraiJournal Articleen
tuhh.container.issue27de_DE
tuhh.container.volume408de_DE
tuhh.container.startpage7551de_DE
tuhh.container.endpage7557de_DE
dc.rights.nationallicensefalsede_DE
item.fulltextWith Fulltext-
item.creatorOrcidDuester, Lars-
item.creatorOrcidFabricius, Anne-Lena-
item.creatorOrcidJakobtorweihen, Sven-
item.creatorOrcidPhilippe, Allan-
item.creatorOrcidWeigl, Florian-
item.creatorOrcidWimmer, Andreas-
item.creatorOrcidSchuster, Michael-
item.creatorOrcidNazar, Muhammad Faizan-
item.creatorGNDDuester, Lars-
item.creatorGNDFabricius, Anne-Lena-
item.creatorGNDJakobtorweihen, Sven-
item.creatorGNDPhilippe, Allan-
item.creatorGNDWeigl, Florian-
item.creatorGNDWimmer, Andreas-
item.creatorGNDSchuster, Michael-
item.creatorGNDNazar, Muhammad Faizan-
item.grantfulltextopen-
crisitem.author.deptThermische Verfahrenstechnik V-8-
crisitem.author.orcid0000-0002-1746-8932-
crisitem.author.orcid0000-0002-4168-4045-
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