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Findings from Catalan Institution for Research and Advanced Studies (ICREA) Provides New Data on Chromatography (Analysis of endocrine disrupters and...

August 15, 2014



Findings from Catalan Institution for Research and Advanced Studies (ICREA) Provides New Data on Chromatography (Analysis of endocrine disrupters and related compounds in sediments and sewage sludge using on-line turbulent flow ...)

By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Science. According to news reporting from Barcelona, Spain, by NewsRx journalists, research stated, "A novel fully automated method based on dual column switching using turbulent flow chromatography followed by liquid chromatography coupled to tandem mass spectrometry (TFC-LC-MS/MS) was applied for the determination of endocrine disruptors (EDCs) and related compounds in sediment and sewage sludge samples. This method allows the unequivocal identification and quantification of the most relevant environmental EDCs such as natural and synthetic estrogens and their conjugates, antimicrobials, parabens, bisphenol A (BPA), alkylphenolic compounds, benzotriazoles, and organophosphorus flame retardants, minimizing time of analysis and alleviating matrix effects."

The news correspondents obtained a quote from the research from Catalan Institution for Research and Advanced Studies (ICREA), "Applying this technique, after the extraction of the target compounds by pressurized liquid extraction (PLE), sediment and sewage sludge extracts were directly injected to the chromatographic system and the analytes were concentrated into the clean-up loading column. Using six-port switching system, the analytes were transferred to the analytical column for subsequent detection by MS MS (QqQ). In order to optimize this multiplexing system, a comparative study employing six types of TurboFlow columns, with different chemical modifications, was performed to achieve the maximum retention of analytes and best elimination of matrix components. Using the optimized protocol low limits of quantification (LOQs) were obtained ranging from 0.0083 to 1.6 ng/g for sediment samples and from 0.10 to 125 ng/g for sewage sludge samples (except for alkylphenol monoethoxylate)."

According to the news reporters, the research concluded: "The method was used to evaluate the presence and fate of target EDCs in the Ebro River which is the most important river in Spain with intensive agricultural and industrial activities in the basin that contribute to deteriorating soil and water quality."

For more information on this research see: Analysis of endocrine disrupters and related compounds in sediments and sewage sludge using on-line turbulent flow chromatography-liquid chromatography-tandem mass spectrometry. Journal of Chromatography A, 2014;1352():29-37. 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 journalists report that additional information may be obtained by contacting M. Gorga, ICREA, Barcelona, Spain. Additional authors for this research include S. Insa, M. Petrovic and D. Barcelo (see also Science).

Keywords for this news article include: Spain, Europe, Science, Barcelona

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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