title: In situ hydrothermal growth of polyaniline coating for in-tube solid-phase microextraction towards ultraviolet filters in environmental water samples.
abstract: A facile, low cost, sensitive and environmentally friendly polyaniline (PANI) coating was prepared onto the basalt fibers (BFs) by in situ hydrothermal growth method. PANI functionalized BFs were placed into a poly(ether ether ketone) (PEEK) tube as a fibers-in-tube solid-phase microextraction (SPME) device. The extraction and analysis processes were carried out by connecting it to high performance liquid chromatography (HPLC). Three ultraviolet filters including 2-hydroxy-4-methoxybenzophenone, phenyl salicylate and 2,4-dihydroxybenzophenone were employed as model analytes. Under the optimal extraction and desorption conditions, online in-tube SPME-HPLC analysis method was established and afforded satisfactory enrichment factors (1323-1555), wide linear ranges (0.06-100μgL-1) with correlation coefficients ranging from 0.9995 to 0.9999, low limits of detection (0.02-0.05μgL-1) and acceptable extraction repeatability (RSD<7.8%, n=6) and preparation repeatability (RSD<9.7%, n=3). The proposed method was successfully applied to the determination of the three ultraviolet filters in two environmental water samples.
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Bu
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Juanjuan
authors.initials: J
authors.lastname: Feng
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Xiuqin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Tian
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. Electronic address: chm_sunm@ujn.edu.cn.
authors.forename: Min
authors.initials: M
authors.lastname: Sun
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. Electronic address: chm_luocn@ujn.edu.cn.
authors.forename: Chuannan
authors.initials: C
authors.lastname: Luo
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D006863:Hydrogen-Ion Concentration; D008855:Microscopy, Electron, Scanning; D009994:Osmolar Concentration; D059027:Recycling; D015203:Reproducibility of Results; D017640:Silicates / Q000737:chemistry; D052617:Solid Phase Microextraction / Q000295:instrumentation* / Q000379:methods*; D012996:Solutions; D012997:Solvents / Q000737:chemistry; D013696:Temperature; D013997:Time Factors; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D000814:Aniline Compounds; D017640:Silicates; D012996:Solutions; D012997:Solvents; D014874:Water Pollutants, Chemical; C060346:basalt; C416807:polyaniline
keywords: Basalt fibers; High performance liquid chromatography; Polyaniline; Solid-phase microextraction; Ultraviolet filters