PMID- 33714461 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20210317 LR - 20210317 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 227 DP - 2021 May 15 TI - Porous cage-like hollow magnetic carbon-doped CoO nanocomposite as an advanced sorbent for magnetic solid-phase extraction of nine polycyclic aromatic hydrocarbons. PG - 122149 LID - S0039-9140(21)00070-9 [pii] LID - 10.1016/j.talanta.2021.122149 [doi] AB - In this study, porous cage-like hollow magnetic carbon-doped CoO nanocomposite (CoO@C) was successfully synthesized using a metal-organic frameworks (MOFs) as precursor by one-step calcination method in this work. The obtained nanoporous composite showed excellent magnetic response by taking advantage of the magnetism of CoO even without the Fe(3)O(4), making it an advanced sorbent for magnetic solid-phase extraction (MSPE). The Co-MOF and CoO@C were characterized by XRD, TGA, SEM, TEM, vibrating sample magnetometry, and FT-IR spectroscopy. Based on this, a method using CoO@C for MSPE coupled with HPLC was established for the analysis of nine polycyclic aromatic hydrocarbons (PAHs) from various real water samples. The amount of sorbent, extraction times, extraction temperature, desorption times, oscillation rate, and elution volume were optimized. Under the optimal conditions, the method had good relative standard deviations (RSDs) of 1.1%-6.5% and a satisfying linearity range of 0.5-1000 mug L(-1). The low LOD and LOQ for nine PAHs were found to be 0.06-1.30 mug L(-1) and 0.19-4.30 mug L(-1), respectively. The experimental results indicated that the prepared nanocomposite showed excellent adsorption capacity compared to other commercial sorbents and has potential applications for the removal of hazardous pollutants from environmental samples. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Huang, Pengfei AU - Huang P AD - Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China. FAU - Kou, Haixia AU - Kou H AD - Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China. FAU - Wang, Xuemei AU - Wang X AD - Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China. Electronic address: wangxuemei@nwnu.edu.cn. FAU - Zhou, Zheng AU - Zhou Z AD - Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China. FAU - Du, Xinzhen AU - Du X AD - Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China. FAU - Lu, Xiaoquan AU - Lu X AD - Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China. LA - eng PT - Journal Article DEP - 20210210 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R SB - IM OTO - NOTNLM OT - Adsorbents OT - Magnetic solid-phase extraction (MSPE) OT - Metal-organic frameworks OT - Polycyclic aromatic hydrocarbons (PAHs) EDAT- 2021/03/15 06:00 MHDA- 2021/03/15 06:01 CRDT- 2021/03/14 20:31 PHST- 2020/12/23 00:00 [received] PHST- 2021/01/19 00:00 [revised] PHST- 2021/01/24 00:00 [accepted] PHST- 2021/03/14 20:31 [entrez] PHST- 2021/03/15 06:00 [pubmed] PHST- 2021/03/15 06:01 [medline] AID - S0039-9140(21)00070-9 [pii] AID - 10.1016/j.talanta.2021.122149 [doi] PST - ppublish SO - Talanta. 2021 May 15;227:122149. doi: 10.1016/j.talanta.2021.122149. Epub 2021 Feb 10.