title: Enrichment and determination of polybrominated diphenyl ethers in environmental water samples by magnetic solid-phase extraction with core-shell magnetic carbon microspheres before gas chromatography with mass spectrometry.
abstract: Core-shell magnetic carbon microspheres were synthesized by a simple hydrothermal method and used as a novel magnetic solid-phase extraction adsorbent for the sensitive determination of polybrominated diphenyl ethers in environmental water samples. Gas chromatography with negative chemical ionization mass spectrometry was adopted for the detection. Box-Behnken design was used to investigate and optimize important magnetic solid-phase extraction parameters through response surface methodology. Under the optimal conditions, low limits of detection (0.07-0.17 ng·L(-1) ), a wide linear range (1-1000 ng·L(-1) ), and good repeatability (0.80-4.58%) were achieved. The developed method was validated with several real water samples, and satisfactory results were obtained in the range of 72.8-97.9%. These results indicated that core-shell magnetic carbon microspheres have great potential as an adsorbent for the magnetic solid-phase extraction of polybrominated diphenyl ethers at trace levels from environmental water samples.
authors.affiliation: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, P.R. China.
authors.forename: Jia-Bin
authors.initials: JB
authors.lastname: Zhou
authors.affiliation: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, P.R. China.|Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, Jinan, China.
authors.forename: Xiao-Kun
authors.initials: XK
authors.lastname: She
authors.affiliation: Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, Jinan, China.
authors.forename: Han-Zhu
authors.initials: HZ
authors.lastname: Xing
authors.affiliation: Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, Jinan, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, Jinan, China.
authors.forename: Ru-Song
authors.initials: RS
authors.lastname: Zhao
keywords: Core-shell magnetic carbon microspheres; Gas chromatography with mass spectrometry; Magnetic solid-phase extraction; Polybrominated diphenyl ethers; Water samples