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New Findings from Institute for Chemistry in the Area of Separation Science Described (Separation and determination of homogenous fatty alcohol...

August 15, 2014



New Findings from Institute for Chemistry in the Area of Separation Science Described (Separation and determination of homogenous fatty alcohol ethoxylates by liquid chromatography with mulitstage mass spectrometry)

By a News Reporter-Staff News Editor at Science Letter -- New research on Science is the subject of a report. According to news reporting out of Poznan, Poland, by NewsRx editors, research stated, "Alcohol ethoxylates (AEs) are a significant component of a stream of surfactants directed to the aquatic environment. The aim of this work was the investigation of the dependence of the analytical signals of homogeneous AE homologues on liquid chromatography with tandem mass spectrometry conditions, as well as the separation of AEs from the water matrix and, on this basis, the development of an analytical procedure suitable for the determination of AEs in environmental samples."

Our news journalists obtained a quote from the research from Institute for Chemistry, "Homogeneous homologues containing dodecyl moiety and 2-9 oxyethylene subunits were investigated. The analytical signals of the investigated homologues were optimized in terms of concentration of ammonium acetate in the mobile phase (optimum 5 mM) and a column temperature (optimum 35 degrees C) of the liquid chromatography with tandem mass spectrometry system. A separation of AEs from the water matrix by liquid-liquid extraction (ethyl acetate, chloroform) or solid-phase extraction (C-18, styrene divinylbenzene, H-RX) was investigated. In a model investigation, the best recoveries (> 90%) were obtainedwith a styrene divinylbenzene cartridge elutedwith a 1:1 mixture of chloroform and methanol. However, much worse recoveries were obtained froM the river water sample. Better results were obtained for liquid-liquid extraction with ethyl acetate."

According to the news editors, the research concluded: "Recoveries of 62-80% were obtained for homologues having 4-9 oxyethylene subunits, at the lowest spike."

For more information on this research see: Separation and determination of homogenous fatty alcohol ethoxylates by liquid chromatography with mulitstage mass spectrometry. Journal of Separation Science, 2014;37(13):1694-1702. Journal of Separation Science can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Journal of Separation Science - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1615-9314)

Our news journalists report that additional information may be obtained by contacting J. Zembrzuska, Poznan Univ Technical, Inst Chem & Technical Electrochem, PL-60965 Poznan, Poland. Additional authors for this research include I. Budnik and Z. Lukaszewski (see also Science).

Keywords for this news article include: Poznan, Poland, Europe, Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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