PMID- 27032407 OWN - NLM STAT- MEDLINE DCOM- 20180112 LR - 20191210 IS - 1618-2650 (Electronic) IS - 1618-2642 (Linking) VI - 408 IP - 15 DP - 2016 Jun TI - Polydopamine-coated magnetic nanoparticles for isolation and enrichment of estrogenic compounds from surface water samples followed by liquid chromatography-tandem mass spectrometry determination. PG - 4011-20 LID - 10.1007/s00216-016-9489-9 [doi] AB - Estrogens, phytoestrogens, and mycoestrogens may enter into the surface waters from different sources, such as effluents of municipal wastewater treatment plants, industrial plants, and animal farms and runoff from agricultural areas. In this work, a multiresidue analytical method for the determination of 17 natural estrogenic compounds, including four steroid estrogens, six mycoestrogens, and seven phytoestrogens, in river water samples has been developed. (Fe3O4)-based magnetic nanoparticles coated by polydopamine (Fe3O4@pDA) were used for dispersive solid-phase extraction, and the final extract was analyzed by ultra-high performance liquid chromatography coupled with tandem mass spectrometry. The Fe3O4 magnetic nanoparticles were prepared by a co-precipitation procedure, coated by pDA, and characterized by scanning electron microscopy, infrared spectroscopy, and elemental analysis. The sample preparation method was optimized in terms of extraction recovery, matrix effect, selectivity, trueness, precision, method limits of detection, and method limits of quantification (MLOQs). For all the 17 analytes, recoveries were >70 % and matrix effects were below 30 % when 25 mL of river water sample was treated with 90 mg of Fe3O4@pDA nanoparticles. Selectivity was tested by spiking river water samples with 50 other compounds (mycotoxins, antibacterials, conjugated hormones, UV filters, alkylphenols, etc.), and only aflatoxins and some benzophenones showed recoveries >60 %. This method proved to be simple and robust and allowed the determination of natural estrogenic compounds belonging to different classes in surface waters with MLOQs ranging between 0.003 and 0.1 mug L(-1). Graphical Abstract Determination of natural estrogenic compounds in water by magnetic solid phase extraction followed by liquid chromatography-tandem mass spectrometry analysis. FAU - Capriotti, Anna Laura AU - Capriotti AL AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. FAU - Cavaliere, Chiara AU - Cavaliere C AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. chiara.cavaliere@uniroma1.it. FAU - La Barbera, Giorgia AU - La Barbera G AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. FAU - Piovesana, Susy AU - Piovesana S AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. FAU - Samperi, Roberto AU - Samperi R AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. FAU - Zenezini Chiozzi, Riccardo AU - Zenezini Chiozzi R AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. FAU - Lagana, Aldo AU - Lagana A AD - Dipartimento di Chimica, Universita di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Rome, Italy. LA - eng PT - Evaluation Study PT - Journal Article DEP - 20160331 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 RN - 0 (Estrogens) RN - 0 (Indoles) RN - 0 (Magnetite Nanoparticles) RN - 0 (Polymers) RN - 0 (Water Pollutants, Chemical) RN - 0 (polydopamine) SB - IM MH - Adsorption MH - Chromatography, Liquid/*methods MH - Estrogens/*chemistry/isolation & purification MH - Indoles/chemistry MH - Magnetite Nanoparticles/*chemistry MH - Polymers/chemistry MH - Tandem Mass Spectrometry/*methods MH - Water Pollutants, Chemical/*chemistry/isolation & purification OTO - NOTNLM OT - Dispersive solid-phase extraction OT - Estrogens OT - Magnetic nanoparticles OT - Mycoestrogens OT - Phytoestrogens OT - Polydopamine EDAT- 2016/04/02 06:00 MHDA- 2018/01/13 06:00 CRDT- 2016/04/02 06:00 PHST- 2016/01/27 00:00 [received] PHST- 2016/03/14 00:00 [accepted] PHST- 2016/03/07 00:00 [revised] PHST- 2016/04/02 06:00 [entrez] PHST- 2016/04/02 06:00 [pubmed] PHST- 2018/01/13 06:00 [medline] AID - 10.1007/s00216-016-9489-9 [pii] AID - 10.1007/s00216-016-9489-9 [doi] PST - ppublish SO - Anal Bioanal Chem. 2016 Jun;408(15):4011-20. doi: 10.1007/s00216-016-9489-9. Epub 2016 Mar 31.