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dc.contributor.authorCumming, Janeten_US
dc.contributor.authorHawker, Darrylen_US
dc.contributor.authorMatthews, Christopheren_US
dc.contributor.authorChapman, Heatheren_US
dc.contributor.authorNugent, K.en_US
dc.date.accessioned2017-05-03T11:24:33Z
dc.date.available2017-05-03T11:24:33Z
dc.date.issued2010en_US
dc.identifier.issn02772248en_US
dc.identifier.doi10.1080/02772248.2010.482062en_US
dc.identifier.urihttp://hdl.handle.net/10072/34625
dc.description.abstractMetachromatic polyelectrolyte titration was investigated as a means of analyzing polymeric quaternary ammonium salts (polyquaterniums) of relatively low charge density used as ingredients in cosmetics. They are of possible toxicological concern, but little is known of their environmental fate and behavior. With o-toluidine blue as the indicator, determination of the concentration of a range of polyquaterniums of commercial importance and cosmetic origin was possible. Using a visual endpoint, normalities as low as 3 10-5 N could be determined, while with a spectrophotometric endpoint, the technique was effective to approximately 3 10-6 N. The concentrations (g L-1) to which these normalities correspond depend on the charge density of the polymer. Polyquaterniums are frequently used in association with anionic surfactants in cosmetic formulations and the presence of an anionic surfactant even in excess did not affect results although the color change was less stable. Titration in the presence of prepared humic acid was also possible.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherTaylor & Francis Ltd.en_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom1595en_US
dc.relation.ispartofpageto1608en_US
dc.relation.ispartofissue9en_US
dc.relation.ispartofjournalToxicological and Environmental Chemistryen_US
dc.relation.ispartofvolume92en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchEnvironmental Chemistry (incl. Atmospheric Chemistry)en_US
dc.subject.fieldofresearchcode039901en_US
dc.titleAnalysis of polymeric quaternary ammonium salts as found in cosmetics by metachromatic polyelectrolyte titrationen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Environmenten_US
gro.date.issued2015-06-01T23:35:27Z
gro.hasfulltextNo Full Text


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