PMID- 29426515 OWN - NLM STAT- MEDLINE DCOM- 20180924 LR - 20180924 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 181 DP - 2018 May 1 TI - Preparation of core-shell structured magnetic covalent organic framework nanocomposites for magnetic solid-phase extraction of bisphenols from human serum sample. PG - 296-304 LID - S0039-9140(18)30047-X [pii] LID - 10.1016/j.talanta.2018.01.036 [doi] AB - Core-shell structured magnetic covalent organic framework (Fe(3)O(4)@COF) nanocomposites were synthesized via a facile approach at room temperature and explored as an absorbent for magnetic solid-phase extraction (MSPE) of bisphenols (BPs) from human serum sample. The as-prepared Fe(3)O(4)@COF nanocomposites with core-shell structure possessed high specific surface area (181.36m(2)/g), uniform mesoporous size (~ 3.6nm), high saturation magnetization (42.7emu/g), and excellent thermal and chemical stability, rendering it as an ideal adsorbent with high adsorption efficiency and size selectivity. The experimental parameters influencing extraction efficiency, including adsorbent dosage, extraction time, pH and ion strength, desorption solvent and time, were investigated in detail. Taking these advantages together, a simple, fast, effective and sensitive method that MPSE followed by HPLC-MS, was proposed to detect five BPs, which exhibited good linearity (r > 0.9982) within the concentration ranges of 0.1-50mug/L. Moreover, the low detection limits (1.0-78.1ng/L), signal-to-noise ratio (S/N = 3), the high enrichment factors (56-95 fold), and good recoveries (93.0-107.8%) with relative standard deviations (RSDs) less than 3.4% for inter-day and 6.9% for intra-day were achieved. The developed method was also successfully applied to the analysis of trace BPs in human serum sample, which demonstrated the most promising potential of the Fe(3)O(4)@COF nanocomposites as good adsorbent in sample pretreatment. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Chen, Lei AU - Chen L AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. FAU - He, Yanting AU - He Y AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. FAU - Lei, Zhixian AU - Lei Z AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. FAU - Gao, Chenling AU - Gao C AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. FAU - Xie, Qing AU - Xie Q AD - Fujian Vocational College of Bioengineering, Fuzhou, Fujian 350002, China. FAU - Tong, Ping AU - Tong P AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. FAU - Lin, Zian AU - Lin Z AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. Electronic address: zianlin@fzu.edu.cn. LA - eng PT - Journal Article DEP - 20180203 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Benzhydryl Compounds) RN - 0 (Metal-Organic Frameworks) RN - 0 (Phenols) RN - 0 (Sulfones) RN - 0 (bisphenol F) RN - 80-09-1 (bis(4-hydroxyphenyl)sulfone) RN - MLT3645I99 (bisphenol A) RN - OH7IX8A37J (4,4'-hexafluorisopropylidene diphenol) SB - IM MH - Adsorption MH - Benzhydryl Compounds/blood/chemistry/*isolation & purification MH - Humans MH - Hydrogen-Ion Concentration MH - Magnetics MH - Metal-Organic Frameworks/*chemistry MH - Nanocomposites/*chemistry/ultrastructure MH - Phenols/blood/chemistry/*isolation & purification MH - Porosity MH - Reproducibility of Results MH - Solid Phase Extraction/*methods MH - Spectroscopy, Fourier Transform Infrared MH - Sulfones/blood/chemistry/isolation & purification MH - X-Ray Diffraction OTO - NOTNLM OT - Bisphenols OT - Human serum OT - Liquid chromatography-tandem mass spectrometry OT - Magnetic covalent organic frameworks OT - Magnetic solid-phase extraction EDAT- 2018/02/11 06:00 MHDA- 2018/09/25 06:00 CRDT- 2018/02/11 06:00 PHST- 2017/10/19 00:00 [received] PHST- 2017/12/30 00:00 [revised] PHST- 2018/01/15 00:00 [accepted] PHST- 2018/02/11 06:00 [entrez] PHST- 2018/02/11 06:00 [pubmed] PHST- 2018/09/25 06:00 [medline] AID - S0039-9140(18)30047-X [pii] AID - 10.1016/j.talanta.2018.01.036 [doi] PST - ppublish SO - Talanta. 2018 May 1;181:296-304. doi: 10.1016/j.talanta.2018.01.036. Epub 2018 Feb 3.