G Model
ARTICLE IN PRESS
CHROMA-355877; No. of Pages 5
Journal of Chromatography A, xxx (2014) xxx–xxx
Contents lists available at ScienceDirect
Journal of Chromatography A journal homepage: www.elsevier.com/locate/chroma
Short communication
Ultrathin-shell boron nitride hollow spheres as sorbent for dispersive solid-phase extraction of polychlorinated biphenyls from environmental water samples Meizhen Fu a , Hanzhu Xing a , Xiangfeng Chen a,∗ , Fan Chen b , Chi-Man Lawrence Wu c , Rusong Zhao a , Chuange Cheng a a
Key Laboratory of Applied Technology of Sophisticated Analytical Instruments, Shandong Academy of Sciences, Jinan, Shandong, PR China Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland c Department of Physics and Material Sciences, The City University of Hong Kong, Hong Kong Special Administrative Region b
a r t i c l e
i n f o
Article history: Received 25 August 2014 Received in revised form 1 October 2014 Accepted 1 October 2014 Available online xxx Keywords: Boron nitride hollow spheres Dispersive solid-phase extraction Gas chromatography–tandem mass spectrometry Polychlorinated biphenyls
a b s t r a c t Boron nitride hollow spheres with ultrathin-shells were synthesized and used as sorbents for dispersive solid-phase extraction of aromatic pollutants at trace levels from environmental water samples. Polychlorinated biphenyls (PCBs) were selected as target compounds. Sample quantification and detection were performed by gas chromatography–tandem mass spectrometry. Extraction parameters influencing the extraction efficiency were optimized through response surface methodology using the Box–Behnken design. The proposed method achieved good linearity within the concentration range of 0.15–250 ng L−1 PCBs, low limits of detection (0.04–0.09 ng L−1 , S/N = 3:1), good repeatability of the extractions (relative standard deviation,
ARTICLE IN PRESS
CHROMA-355877; No. of Pages 5
Journal of Chromatography A, xxx (2014) xxx–xxx
Contents lists available at ScienceDirect
Journal of Chromatography A journal homepage: www.elsevier.com/locate/chroma
Short communication
Ultrathin-shell boron nitride hollow spheres as sorbent for dispersive solid-phase extraction of polychlorinated biphenyls from environmental water samples Meizhen Fu a , Hanzhu Xing a , Xiangfeng Chen a,∗ , Fan Chen b , Chi-Man Lawrence Wu c , Rusong Zhao a , Chuange Cheng a a
Key Laboratory of Applied Technology of Sophisticated Analytical Instruments, Shandong Academy of Sciences, Jinan, Shandong, PR China Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland c Department of Physics and Material Sciences, The City University of Hong Kong, Hong Kong Special Administrative Region b
a r t i c l e
i n f o
Article history: Received 25 August 2014 Received in revised form 1 October 2014 Accepted 1 October 2014 Available online xxx Keywords: Boron nitride hollow spheres Dispersive solid-phase extraction Gas chromatography–tandem mass spectrometry Polychlorinated biphenyls
a b s t r a c t Boron nitride hollow spheres with ultrathin-shells were synthesized and used as sorbents for dispersive solid-phase extraction of aromatic pollutants at trace levels from environmental water samples. Polychlorinated biphenyls (PCBs) were selected as target compounds. Sample quantification and detection were performed by gas chromatography–tandem mass spectrometry. Extraction parameters influencing the extraction efficiency were optimized through response surface methodology using the Box–Behnken design. The proposed method achieved good linearity within the concentration range of 0.15–250 ng L−1 PCBs, low limits of detection (0.04–0.09 ng L−1 , S/N = 3:1), good repeatability of the extractions (relative standard deviation,
