Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34085
DC FieldValueLanguage
dc.contributor.authorYang, T.J.en_US
dc.contributor.author李茂榮zh_TW
dc.contributor.authorTsai, F.J.en_US
dc.contributor.authorChen, C.Y.en_US
dc.contributor.authorYang, T.C.C.en_US
dc.contributor.authorLee, M.R.en_US
dc.date2010zh_TW
dc.date.accessioned2014-06-06T07:47:08Z-
dc.date.available2014-06-06T07:47:08Z-
dc.identifier.issn0003-2670zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/34085-
dc.description.abstractA new hyphenated technique couples supercritical fluid extraction in situ derivatization and on-line headspace solid-phase microextraction to gas chromatography-mass spectrometry (SFE in situ derivatization on-line HS-SPME-GC-MS) for the determination of paraben preservatives and polyphenolic antioxidants in cosmetics. The preservatives and antioxidants were extracted from the cosmetic matrices with supercritical carbon dioxide at a pressure of 13,840 kPa. The supercritical fluid extraction was performed at 55 C for 10 min of static extraction then 15 min of dynamic extraction. The extractant subsequently was derivatized in situ with the silylation reagent N,O-bis(trimethylsilyl)trifluoroacetamide with 0.1% trimethylchlorosilane. The product was then adsorbed on a polyacrylate solid-phase microextraction (SPME) fiber in the headspace. Sea sand was used as a dispersive material in the SFE step. The analytical linear ranges for the preservatives and antioxidants were found to be from 10 to 1000 ng g(-1) with RSD values below 7.8%. The detection limits ranged from 0.5 to 8.3 ng g(-1). These results are better than those obtained by using only SPME or SFE for trace preservatives and antioxidants analysis in cosmetic matrices. The new method was successfully utilized to determine the amounts of preservatives and antioxidants in real cosmetics without the need for tedious pretreatments. (c) 2010 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationAnalytica Chimica Actaen_US
dc.relation.ispartofseriesAnalytica Chimica Acta, Volume 668, Issue 2, Page(s) 188-194.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.aca.2010.04.001en_US
dc.subjectSupercritical fluid extraction on-line with solid-phase microextractionen_US
dc.subjectCosmeticsen_US
dc.subjectPreservativesen_US
dc.subjectAntioxidantsen_US
dc.subjectelectrokinetic capillary chromatographyen_US
dc.subjectperformanceen_US
dc.subjectliquid-chromatographyen_US
dc.subjectbutylated hydroxyanisoleen_US
dc.subjectpreservativesen_US
dc.subjectparabensen_US
dc.subjectproductsen_US
dc.subjectsampleen_US
dc.subjecthydroxytolueneen_US
dc.subjectantioxidantsen_US
dc.subjectaciden_US
dc.titleDetermination of additives in cosmetics by supercritical fluid extraction on-line headspace solid-phase microextraction combined with gas chromatography-mass spectrometryen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/j.aca.2010.04.001zh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.grantfulltextnone-
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