A biodegradation study of triethylene glycol monododecyl ether under the conditions of the OECD screening test 301E / A. Zgola-Grzeskowiak in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 4/2008 (07-08/2008)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 4/2008 (07-08/2008) . - p. 202-207 Titre : A biodegradation study of triethylene glycol monododecyl ether under the conditions of the OECD screening test 301E Type de document : texte imprimé Auteurs : A. Zgola-Grzeskowiak, Auteur ; Z. Lukaszewski, Auteur ; M. Borkowska, Auteur ; M. Franska, Auteur ; B. Wyrwas, Auteur ; T. Grzeskowiak, Auteur Année de publication : 2008 Article en page(s) : p. 202-207 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chimie de l'environnement Surfactants -- Biodégradation Tags : Alcool  éthoxylates  Test  dépistage Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The biodegradation of triethylene glycol monododecyl ether (C12EO3) was studied under the conditions of the Organization for Economic Co-operation and Development (OECD) Screening Test. Primary biodegradation of C12EO3 and concentration profiles of its metabolites were measured by the high performance liquid chromatography with fluorimetric detection (HPLC-FD) after derivatisation with 1-naphthoyl chloride. High performance liquid chromatography – electrospray mass spectrometry (HPLC-MS) was used for the identification and analysis of C12EO3 and its metabolites. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2945 [article]

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Concentrations of Endocrine Disrupting Alkylphenols and Their mono- and diethoxylates in sediments and water from artificial lake Malta in Poland / A. Zgola-Grzeskowiak in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 4/2010 (07-08/2010)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 4/2010 (07-08/2010) . - p. 222-227 Titre : Concentrations of Endocrine Disrupting Alkylphenols and Their mono- and diethoxylates in sediments and water from artificial lake Malta in Poland Type de document : texte imprimé Auteurs : A. Zgola-Grzeskowiak, Auteur ; T. Grzeskowiak, Auteur ; R. Rydlichowski, Auteur ; Z. Lukaszewski, Auteur Année de publication : 2010 Article en page(s) : p. 222-227 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alkylphénols Eau -- Pollution Ethoxylate d'alkylphénol Extraction par ultrasons Sédiments contaminés Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : In the present paper analysis of alkylphenols and their short-chained ethoxylates was presented. The analytes were determined in sediments from Lake Malta as well as in water incoming to and outgoing from the lake. Sonication-assisted extraction was used for isolation of the analytes from the sediment samples. Solid-phase extraction with polytetrafluoroethylene sorbent was used for both clean-up of extracts and isolation of analytes from the water samples. Alkylphenols and their ethoxylates were quantitatively analysed with the use of HPLC with fluorescence detection. The analytes were determined in the sediment samples at relatively low concentrations with the maximum concentration of 168 μg kg–1 for nonylphenol monoethoxylate, which can be ascribed to periodic removal of sediments from Lake Malta. Maximum concentration in water samples was noted for nonylphenol at 0.56 μg L–1. No octylphenol nor its ethoxylates were found in the water samples. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9800 [article]

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Liquid chromatography with fluorescence detection as a tool for separation of endocrine disrupting alkylphenols and their mono- and diethoxylates in analysis of river water samples / A. Zgola-Grzeskowiak in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 4/2009 (07-8/2009)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 4/2009 (07-8/2009) . - p. 200-204 Titre : Liquid chromatography with fluorescence detection as a tool for separation of endocrine disrupting alkylphenols and their mono- and diethoxylates in analysis of river water samples Type de document : texte imprimé Auteurs : A. Zgola-Grzeskowiak, Auteur ; T. Grzeskowiak, Auteur Année de publication : 2009 Article en page(s) : p. 200-204 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alkylphénols Ethoxylate d'alkylphénol Fluorescence Surfactants Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : A simple, accurate and reproducible reversed-phase high performance liquid chromatography method with fluorescence detection was developed for determination of octylphenol, nonylphenol and their short-chain ethoxylates, using an octadecyl silica column. The mobile phase used for the analysis consisted of methanol, acetonitrile and water (50:15:35). The analytes were separated successfully within a reasonable time without gradient elution, which was not achieved previously. Thus, use of inexpensive fluorescence detection instead of MS detection was enabled. This chromatographic method, combined with solid-phase extraction, was highly applicable for the simultaneous determination of octyl- and nonylphenol as well as their mono- and diethoxylates in real river water samples. The limit of detection (LOD) for octylphenol and its ethoxylates was 0.05 µg · L–1. For nonylphenol the LOD was 0.14 µg · L–1 and for its ethoxylates it was 0.15 µg · L–1. Recovery of octylphenol and its ethoxylates was about 80 %. Recovery of nonylphenol and its ethoxylates was slightly lower (from 60 to 76 %). Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6052 [article]

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