PMID- 26653422 OWN - NLM STAT- MEDLINE DCOM- 20160920 LR - 20161126 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 148 DP - 2016 TI - Facile synthesis of magnetic carbon nitride nanosheets and its application in magnetic solid phase extraction for polycyclic aromatic hydrocarbons in edible oil samples. PG - 46-53 LID - S0039-9140(15)30425-2 [pii] LID - 10.1016/j.talanta.2015.10.059 [doi] AB - In this study, we proposed a method to fabricate magnetic carbon nitride (CN) nanosheets by simple physical blending. Low-cost CN nanosheets prepared by urea possessed a highly pi-conjugated structure; therefore the obtained composites were employed as magnetic solid-phase extraction (MSPE) sorbent for extraction of polycyclic aromatic hydrocarbons (PAHs) in edible oil samples. Moreover, sample pre-treatment time could be carried out within 10 min. Thus, a simple and cheap method for the analysis of PAHs in edible oil samples was established by coupling magnetic CN nanosheets-based MSPE with gas chromatography-mass spectrometry (GC/MS) analysis. Limits of quantitation (LOQs) for eight PAHs ranged from 0.4 to 0.9 ng/g. The intra- and inter-day relative standard deviations (RSDs) were less than 15.0%. The recoveries of PAHs for spiked soybean oil samples ranged from 91.0% to 124.1%, with RSDs of less than 10.2%. Taken together, the proposed method offers a simple and cost-effective option for the convenient analysis of PAHs in oil samples. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Zheng, Hao-Bo AU - Zheng HB AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Ding, Jun AU - Ding J AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Zheng, Shu-Jian AU - Zheng SJ AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Zhu, Gang-Tian AU - Zhu GT AD - Key Laboratory of Tectonics and Petroleum Resources (Ministry of Education), China University of Geosciences, Wuhan 430074, China. FAU - Yuan, Bi-Feng AU - Yuan BF AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Feng, Yu-Qi AU - Feng YQ AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. Electronic address: yqfeng@whu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151023 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Nitriles) RN - 0 (Plant Oils) RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 534Q0F66RK (cyanogen) SB - IM MH - *Magnetic Phenomena MH - Nanostructures/*chemistry MH - Nitriles/*chemical synthesis MH - Plant Oils/*analysis MH - Polycyclic Aromatic Hydrocarbons/*analysis MH - Solid Phase Extraction/*methods OTO - NOTNLM OT - Edible oil OT - Gas chromatography-mass spectrometry OT - Magnetic carbon nitride nanosheets OT - Magnetic solid-phase extraction OT - Polycyclic aromatic hydrocarbons EDAT- 2015/12/15 06:00 MHDA- 2016/09/22 06:00 CRDT- 2015/12/15 06:00 PHST- 2015/08/04 00:00 [received] PHST- 2015/10/18 00:00 [revised] PHST- 2015/10/22 00:00 [accepted] PHST- 2015/12/15 06:00 [entrez] PHST- 2015/12/15 06:00 [pubmed] PHST- 2016/09/22 06:00 [medline] AID - S0039-9140(15)30425-2 [pii] AID - 10.1016/j.talanta.2015.10.059 [doi] PST - ppublish SO - Talanta. 2016;148:46-53. doi: 10.1016/j.talanta.2015.10.059. Epub 2015 Oct 23.