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Researchers at University of Rovira and Virgili Have Reported New Data on Chromatography (A pressurised hot water extraction and liquid...

September 12, 2014



Researchers at University of Rovira and Virgili Have Reported New Data on Chromatography (A pressurised hot water extraction and liquid chromatography-high resolution mass spectrometry method to determine polar benzotriazole, benzothiazole and ...)

By a News Reporter-Staff News Editor at Science Letter -- Research findings on Science are discussed in a new report. According to news reporting originating in Tarragona, Spain, by NewsRx journalists, research stated, "Benzothiazole, benzotriazole and benzenesulfonamide derivates are well-known aquatic contaminants, although very few studies have been published about their occurrence in sewage sludge samples. In this paper, a pressurised hot water extraction (PHWE) method has been developed for the simultaneous determination of these families of compounds."

The news reporters obtained a quote from the research from the University of Rovira and Virgili, "The compounds were determined by LC-Orbitrap-HRMS and several clean-up strategies such as in-cell PHWE and solid-phase extraction (SPE) were tested to reduce the high matrix effect that occurs when sludge samples are analysed. Absolute recoveries using the whole method were above 80% and the matrix effect was under -20% for most of the compounds studied. Repeatability and reproducibility were usually under 10% (%RSD, 50 and 250 ng g(-1) (d.w.), n = 5), while LODs and LOQs were between 0.25 and 25 ng g(-1) (d.w.) and 0.5 and 50 ng g(-1) (d.w.), respectively. The PHWE/SPE/LC-HRMS method developed was used to analyse several sludge samples collected from five sewage treatment plants (STPs) in Catalonia that use different sewage treatments."

According to the news reporters, the research concluded: "The most frequently determined compounds were benzotriazole derivates and the most abundant compound found was 2-hydroxybenzothiazole."

For more information on this research see: A pressurised hot water extraction and liquid chromatography-high resolution mass spectrometry method to determine polar benzotriazole, benzothiazole and benzenesulfonamide derivates in sewage sludge. Journal of Chromatography A, 2014;1355():53-60. Journal of Chromatography A can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Chromatography A - www.elsevier.com/wps/product/cws_home/502688)

Our news correspondents report that additional information may be obtained by contacting P. Herrero, Univ Rovira & Virgili, Dept. of Analyt Chem & Organ Chem, E-43007 Tarragona, Spain. Additional authors for this research include F. Borrull, R.M. Marce and E. Pocurull (see also Science).

Keywords for this news article include: Tarragona, Spain, 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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