PMID- 31514887 OWN - NLM STAT- MEDLINE DCOM- 20200213 LR - 20200213 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 206 DP - 2020 Jan 1 TI - Enrichment and sensitive determination of phthalate esters in environmental water samples: A novel approach of MSPE-HPLC based on PAMAM dendrimers-functionalized magnetic-nanoparticles. PG - 120213 LID - S0039-9140(19)30846-X [pii] LID - 10.1016/j.talanta.2019.120213 [doi] AB - Phthalate esters (PAEs) are an important kind of environmental endocrine disrupting chemicals, and have attracted great attention in environmental field. Present study described a new method for rapid and sensitive determination of PAEs including dibenzyl phthalate (DPhP), dibutyl phthalate (DnPP), and dicyclohexyl phthalate (DCHP) from aqueous matrices based on magnetic solid-phase extraction. Polyamidoamine (PAMAM) dendrimers-grafted magnetic-nanoparticles were synthesized and characterized, and the expected integration of more multifunctional sites of PAMAM dendrimers and rapid separation property was utilized for method development. To achieve the best extraction efficiency, several important parameters were optimized including the dosage of the adsorbent, sample pH, kind and volume of eluent, extraction time, desorption time, ionic strength. Under the optimal conditions, three phthalate esters were well enriched and simultaneously determined by high performance liquid chromatography with variable wavelength detector (VWD). Excellent linearities were observed in the range of 0.1-600 mug L(-1) for DPhP and DnPP and 0.5-600 mug L(-1) for DCHP, and all correlation coefficients (R(2)) were larger than 0.997. The limits of detection (LODs, S/N = 3) were ranged from 0.025 to 0.16 mug L(-1). The spiked recoveries of PAEs in real water samples were in the range of 93.5-101.8% with satisfied relative standard deviations (RSDs) ranging from 0.9 to 4.1%. The prepared magnetic materials have shown good adsorption capability for PAEs and the developed method earned merits such as high sensitivity, simplicity, rapidness and environmental friendliness, which can be used as a robust alternative tool for monitoring PAEs in water samples. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Wu, Yalin AU - Wu Y AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. FAU - Zhou, Qingxiang AU - Zhou Q AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. Electronic address: zhouqx@cup.edu.cn. FAU - Yuan, Yongyong AU - Yuan Y AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. FAU - Wang, Hongyuan AU - Wang H AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. FAU - Tong, Yayan AU - Tong Y AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. FAU - Zhan, Yali AU - Zhan Y AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. Electronic address: yalizhan1970@163.com. FAU - Sheng, Xueying AU - Sheng X AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. FAU - Sun, Yi AU - Sun Y AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. FAU - Zhou, Xianqi AU - Zhou X AD - State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (Beijing), Beijing, 102249, China. LA - eng PT - Journal Article DEP - 20190801 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Dendrimers) RN - 0 (Esters) RN - 0 (Magnetite Nanoparticles) RN - 0 (Phthalic Acids) RN - 0 (Water Pollutants, Chemical) RN - 2286E5R2KE (Dibutyl Phthalate) RN - CGD15M7H2N (dicyclohexyl phthalate) SB - IM MH - Chromatography, High Pressure Liquid/methods MH - Dendrimers/*chemistry MH - Dibutyl Phthalate/analysis MH - Esters/*analysis MH - Lakes/analysis MH - Limit of Detection MH - Magnetite Nanoparticles/*chemistry MH - Oceans and Seas MH - Phthalic Acids/*analysis MH - Solid Phase Extraction/methods MH - Water Pollutants, Chemical/*analysis OTO - NOTNLM OT - Environmental water samples OT - High performance liquid chromatography OT - Magnetic solid-phase extraction OT - PAMAM dendrimers OT - Phthalate esters EDAT- 2019/09/14 06:00 MHDA- 2020/02/14 06:00 CRDT- 2019/09/14 06:00 PHST- 2019/05/13 00:00 [received] PHST- 2019/07/21 00:00 [revised] PHST- 2019/07/31 00:00 [accepted] PHST- 2019/09/14 06:00 [entrez] PHST- 2019/09/14 06:00 [pubmed] PHST- 2020/02/14 06:00 [medline] AID - S0039-9140(19)30846-X [pii] AID - 10.1016/j.talanta.2019.120213 [doi] PST - ppublish SO - Talanta. 2020 Jan 1;206:120213. doi: 10.1016/j.talanta.2019.120213. Epub 2019 Aug 1.