PMID- 25160956 OWN - NLM STAT- MEDLINE DCOM- 20150304 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1362 DP - 2014 Oct 3 TI - Amine-functional magnetic polymer modified graphene oxide as magnetic solid-phase extraction materials combined with liquid chromatography-tandem mass spectrometry for chlorophenols analysis in environmental water. PG - 34-42 LID - S0021-9673(14)01257-6 [pii] LID - 10.1016/j.chroma.2014.08.027 [doi] AB - A novel planar-structure amine-functional magnetic polymer modified graphene oxide nanocomposite (NH2-MP@GO) was synthesized. The properties were characterized by transmission electron microscopy (TEM) and Fourier-transform infrared spectrometry (FTIR). The obtained adsorption results showed that the NH2-MP@GO had great adsorptive ability toward five chlorophenols (CPs), including 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP), 2,3,4,6-tetrachlorophenol (2,3,4,6-TeCP) and pentachlorophenol (PCP). Based on these, an effective magnetic solid-phase extraction (MSPE) procedure coupled with high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the preconcentration and determination of the five CPs in environmental water samples was developed. Various experimental parameters that could affect the extraction efficiencies had been investigated in detail. Under the optimum conditions, the enrichment factors of the method for the target CPs were found to be 1000. The proposed method was successfully applied for the analysis of environmental water samples with recoveries ranging from 86.4 to 99.8% with correlation coefficients (R) higher than 0.9994. Good linearities were obtained ranging from 10 to 500ng/L for 2-CP, 5 to 500ng/L for 2,4-DCP, 2 to 500ng/L for 2,4,6-TeCP and 2,3,4,6-TeCP, and 1 to 500ng/L for PCP, respectively. The limits of quantitation for the five CPs were 0.6-9.2ng/L. It was confirmed that the planar-structure NH2-MP@GO was a kind of highly effective MSPE materials used for the trace CPs analyses. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Pan, Sheng-Dong AU - Pan SD AD - Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China; Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. FAU - Zhou, Li-Xin AU - Zhou LX AD - Medical School, Ningbo University, Ningbo, Zhejiang 315211, China. FAU - Zhao, Yong-Gang AU - Zhao YG AD - Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China; Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. FAU - Chen, Xiao-Hong AU - Chen XH AD - Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China; Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. FAU - Shen, Hao-Yu AU - Shen HY AD - Ningbo Institute of Technology, Zhejiang University, Ningbo, Zhejiang 315100, China. FAU - Cai, Mei-Qiang AU - Cai MQ AD - School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China. FAU - Jin, Mi-Cong AU - Jin MC AD - Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China; Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. Electronic address: jmcjc@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140815 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Amines) RN - 0 (Chlorophenols) RN - 0 (Oxides) RN - 0 (Polymers) RN - 059QF0KO0R (Water) RN - 7782-42-5 (Graphite) SB - IM MH - Adsorption MH - Amines/*chemistry MH - Chlorophenols/*analysis MH - Chromatography, Liquid/instrumentation/*methods MH - Graphite/chemistry MH - Hydrogen-Ion Concentration MH - Limit of Detection MH - Magnetic Phenomena MH - Oxides/*chemistry MH - Polymers/chemistry MH - Solid Phase Extraction/instrumentation/*methods MH - Tandem Mass Spectrometry/instrumentation/*methods MH - Water/*chemistry OTO - NOTNLM OT - Amine-functional magnetic graphene OT - Chlorophenol OT - Environmental water OT - LC-MS/MS OT - Magnetic solid-phase extraction EDAT- 2014/08/28 06:00 MHDA- 2015/03/05 06:00 CRDT- 2014/08/28 06:00 PHST- 2014/05/21 00:00 [received] PHST- 2014/08/05 00:00 [revised] PHST- 2014/08/07 00:00 [accepted] PHST- 2014/08/28 06:00 [entrez] PHST- 2014/08/28 06:00 [pubmed] PHST- 2015/03/05 06:00 [medline] AID - S0021-9673(14)01257-6 [pii] AID - 10.1016/j.chroma.2014.08.027 [doi] PST - ppublish SO - J Chromatogr A. 2014 Oct 3;1362:34-42. doi: 10.1016/j.chroma.2014.08.027. Epub 2014 Aug 15.