{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T11:08:55Z","timestamp":1790939335359,"version":"4.1.0"},"reference-count":35,"publisher":"Wiley","issue":"18","license":[{"start":{"date-parts":[[2011,8,23]],"date-time":"2011-08-23T00:00:00Z","timestamp":1314057600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2011,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A new method for determining endocrine disrupter compounds (EDCs) in sewage sludge is described in this paper. EDCs studied were bisphenol A (BPA) and alkylphenols (APs). In order to obtain a fast and simple method, selective pressurised liquid extraction (SPLE) and focused ultrasound solid\u2013liquid extraction (FUSLE) were tested. Best results for SPLE were obtained using Florisil as clean\u2010up sorbent and dichloromethane as extraction solvent, while temperature was the only significant variable. Analyte extraction by SPLE was completed in only one extraction cycle of 1\u2009min at 130\u00b0C. FUSLE was carried out in one step of 20\u2009s at 75% power (0.5 cycles) and with 8\u2009mL of ethyl acetate. Although the optimised FUSLE process was faster, simpler and cheaper, SPLE provided higher recovery values (ranging from 81 to 105%) and therefore SPLE\u2010based method was selected and validated. The SPLE and GC\u2010MS method showed an LOD of 10.7\u2009ng\/g for BPA and LODs between 1.2 and 41.6\u2009ng\/g for APs. Relative standard deviation values lower than 6% were obtained for all analytes. As a result, an efficient, fast and simple method based on SPLE and GC\u2010MS for the determination of BPA and APs in sewage sludge is proposed.<\/jats:p>","DOI":"10.1002\/jssc.201100159","type":"journal-article","created":{"date-parts":[[2011,8,31]],"date-time":"2011-08-31T19:02:36Z","timestamp":1314817356000},"page":"2513-2522","source":"Crossref","is-referenced-by-count":33,"title":["Focused ultrasound solid\u2013liquid extraction and selective pressurised liquid extraction to determine bisphenol A and alkylphenols in sewage sludge by gas chromatography\u2013mass spectrometry"],"prefix":"10.1002","volume":"34","author":[{"given":"Mar\u00eda P.","family":"Mart\u00ednez\u2010Moral","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda T.","family":"Tena","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,8,23]]},"reference":[{"key":"e_1_2_6_2_2","unstructured":"Endocrine Disruptor Screening and Testing Advisory Committee Final Report EPA Washington1998."},{"key":"e_1_2_6_3_2","author":"Hester R. 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