title: In situ growth of IRMOF-3 combined with ionic liquids to prepare solid-phase microextraction fibers.
abstract: A superior solid-phase microextraction (SPME) fiber-coating material, IRMOF-3@ILs/PDMS, was prepared by the in situ growth of IRMOF-3 onto stainless-steel wires and protection with ionic liquids (ILs) and polydimethylsiloxane (PDMS). The ILs can efficiently prevent the substantial cracking of IRMOF-3 caused by moisture, and a thin PDMS film can protect the IRMOF-3@ILs material to achieve a much better extraction efficiency as well as excellent resistance to high temperature and high humidity. This IRMOF-3@ILs/PDMS coating possessed a porous structure, a rough surface and an increased lifespan (by at least 100 times) compared with that of IRMOF-3. The coating was evaluated by analyzing four polycyclic aromatic hydrocarbons (PAHs) in water, and good precision (<7.7%), low detection limits (12.0-15.4 ng L(-1)), and wide linearity (50-20,000 ng L(-1)) were achieved under the optimized conditions. The fiber was successfully applied to the sensitive analysis of PAHs in rainwater by coupling it with gas chromatography-mass spectrometry (GC-MS).
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Juan
authors.initials: J
authors.lastname: Zheng
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Siyan
authors.initials: S
authors.lastname: Li
authors.affiliation: School of Pharmacy, Guiyang Medical College, Guiyang 550004, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Chengyong
authors.initials: C
authors.lastname: Su
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Hong
authors.initials: H
authors.lastname: Liu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zhu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China.
authors.forename: Ruifen
authors.initials: R
authors.lastname: Jiang
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China. Electronic address: cesoygf@mail.sysu.edu.cn.
authors.forename: Gangfeng
authors.initials: G
authors.lastname: Ouyang
mesh_terms: D002849:Chromatography, Gas; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis / Q000302:isolation & purification*; D052617:Solid Phase Microextraction; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D004129:Dimethylpolysiloxanes; D052578:Ionic Liquids; D009942:Organometallic Compounds; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; C000597194:zinc 2-amino-1,4-benzenedicarboxylic; C013830:baysilon
keywords: IRMOF-3; Ionic liquids; Polycyclic aromatic hydrocarbons; Polydimethylsiloxane; Solid-phase microextraction