PMID- 32099973 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220413 IS - 2661-801X (Electronic) IS - 2661-801X (Linking) VI - 14 IP - 1 DP - 2020 Dec TI - A simple strategy based on fibers coated with surfactant-functionalized multiwalled carbon nanotubes to improve the properties of solid-phase microextraction of phenols in aqueous solution. PG - 15 LID - 10.1186/s13065-020-00665-7 [doi] LID - 15 AB - METHODS AND EXPERIMENTS: In this study, a functionalized multiwalled carbon nanotube (MWCNT)-coated solid-phase microextraction (SPME) fiber was developed for concentrating analytes in aqueous samples. Sodium deoxycholate (NaDC) was used as a dispersing agent for non-covalent modification of MWCNTs. The coating showed porous structure and large adsorption capacity. To investigate the capability of this MWCNTs/NaDC SPME fiber, it was applied to the analysis of phenols in aqueous solution. After extraction, the analytes were desorbed in an acetonitrile-water solution and analyzed using high-performance liquid chromatography. RESULTS: The MWCNTs/NaDC fiber exhibited good analytical performance, and fine preparation reproducibility was obtained with the relative standard deviations (RSDs) ranging from 4.9% to 10.2% (n = 6) in one batch, from 5.7% to 11.9% (n = 3) among different batches. Under the optimum extraction conditions, the detection limits were 0.15-0.30 ng/mL(S/N = 3), the linear detection ranges were 1-100 ng/mL (R(2) >/= 0.9997) for these analytes, and good recoveries (80.3-95.4%) were obtained for the spiked samples. CONCLUSION: This is a simple and accurate pretreatment method for the analysis of phenols in aqueous samples. CI - (c) The Author(s) 2020. FAU - Zhou, Xueqing AU - Zhou X AUID- ORCID: 0000-0001-7654-6286 AD - 1Analytical and Testing Center, Hainan University, Haikou, 570228 China. GRID: grid.428986.9. ISNI: 0000 0001 0373 6302 AD - 2College of Materials and Chemical Engineering, Hainan University, Haikou, 570228 China. GRID: grid.428986.9. ISNI: 0000 0001 0373 6302 FAU - Xie, Yanli AU - Xie Y AD - 1Analytical and Testing Center, Hainan University, Haikou, 570228 China. GRID: grid.428986.9. ISNI: 0000 0001 0373 6302 FAU - Zhao, Zhendong AU - Zhao Z AD - 1Analytical and Testing Center, Hainan University, Haikou, 570228 China. GRID: grid.428986.9. ISNI: 0000 0001 0373 6302 FAU - Fu, Wenyan AU - Fu W AD - 2College of Materials and Chemical Engineering, Hainan University, Haikou, 570228 China. GRID: grid.428986.9. ISNI: 0000 0001 0373 6302 LA - eng PT - Journal Article DEP - 20200219 PL - Switzerland TA - BMC Chem JT - BMC chemistry JID - 101741142 PMC - PMC7029595 OTO - NOTNLM OT - Functionalized multiwalled carbon nanotube OT - Phenol OT - Solid-phase microextraction OT - Surfactant COIS- Competing interestsThe authors declare that they have no competing interest. EDAT- 2020/02/27 06:00 MHDA- 2020/02/27 06:01 PMCR- 2020/02/19 CRDT- 2020/02/27 06:00 PHST- 2019/07/14 00:00 [received] PHST- 2020/01/30 00:00 [accepted] PHST- 2020/02/27 06:00 [entrez] PHST- 2020/02/27 06:00 [pubmed] PHST- 2020/02/27 06:01 [medline] PHST- 2020/02/19 00:00 [pmc-release] AID - 665 [pii] AID - 10.1186/s13065-020-00665-7 [doi] PST - epublish SO - BMC Chem. 2020 Feb 19;14(1):15. doi: 10.1186/s13065-020-00665-7. eCollection 2020 Dec.