PMID- 17070818 OWN - NLM STAT- MEDLINE DCOM- 20070306 LR - 20161124 IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 1138 IP - 1-2 DP - 2007 Jan 5 TI - Simultaneous determination of the endocrine disrupting compounds nonylphenol, nonylphenol ethoxylates, triclosan and bisphenol A in wastewater and sewage sludge by gas chromatography-mass spectrometry. PG - 32-41 AB - An integrated analytical method for the simultaneous determination of 4-n-nonylphenol (4-n-NP), nonylphenol monoethoxylate (NP1EO), nonylphenol diethoxylate (NP2EO), bisphenol A (BPA) and triclosan (TCS) in wastewater (dissolved and particulate phase) and sewage sludge was developed based on gas chromatography-mass spectrometry. Chromatographic analysis was achieved after derivatization with bis(trimethylsilyl)trifluoroacetamide (BSTFA). Extraction from water samples was performed by solid-phase extraction (SPE). The optimization of SPE procedure included the type of sorbent and the type of the organic solvent used for the elution. Referred to solid samples, the target compounds were extracted by sonication. In this case the optimization of the extraction procedure included the variation of the amount of the extracted biomass, the duration and the temperature of sonication and the type of the extraction organic solvent. The developed extraction procedures resulted in good repeatability and reproducibility with relative standard deviations (RSDs) less than 13% for all the tested compounds for both types of samples. Satisfactory recoveries were obtained (>60%) for all the compounds in both liquid and solid samples, except for 4-n-NP, which gave recoveries up to 35% in wastewater samples and up to 63% in sludge samples. The limits of detection (LODs) of the target compounds varied from 0.03 (4-n-NP) to 0.41 microg l(-1) (NP2EO) and from 0.04 (4-n-NP) to 0.96 microg kg(-1) (NP2EO) for liquid and solid samples, respectively. The developed methods were successfully applied to the analysis of the target compounds in real samples. FAU - Gatidou, Georgia AU - Gatidou G AD - Laboratory of Analytical Chemistry, Department of Chemistry, University of Athens, Panepistimioupolis Zografou, 15771 Athens, Greece. FAU - Thomaidis, Nikolaos S AU - Thomaidis NS FAU - Stasinakis, Athanasios S AU - Stasinakis AS FAU - Lekkas, Themistokles D AU - Lekkas TD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20061030 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Endocrine Disruptors) RN - 0 (Phenols) RN - 0 (Sewage) RN - 0 (Water Pollutants, Chemical) RN - 4NM5039Y5X (Triclosan) RN - 79F6A2ILP5 (nonylphenol) SB - IM MH - Endocrine Disruptors/*analysis MH - Gas Chromatography-Mass Spectrometry/*methods MH - Phenols/analysis MH - Reproducibility of Results MH - Sewage/*analysis/chemistry MH - Solid Phase Extraction MH - Triclosan/analysis MH - Water Pollutants, Chemical/analysis EDAT- 2006/10/31 09:00 MHDA- 2007/03/07 09:00 CRDT- 2006/10/31 09:00 PHST- 2006/07/30 00:00 [received] PHST- 2006/10/17 00:00 [revised] PHST- 2006/10/18 00:00 [accepted] PHST- 2006/10/31 09:00 [pubmed] PHST- 2007/03/07 09:00 [medline] PHST- 2006/10/31 09:00 [entrez] AID - S0021-9673(06)02013-9 [pii] AID - 10.1016/j.chroma.2006.10.037 [doi] PST - ppublish SO - J Chromatogr A. 2007 Jan 5;1138(1-2):32-41. doi: 10.1016/j.chroma.2006.10.037. Epub 2006 Oct 30.