1. Boron nitride nanotubes as novel sorbent for solid-phase microextraction of polycyclic aromatic hydrocarbons in environmental water samples
- Author
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Han-Zhu Xing, Xiangfeng Chen, Chunyi Zhi, Ru-Song Zhao, Meizhen Fu, and Chi-Man Lawrence Wu
- Subjects
Boron Compounds ,Detection limit ,Nanotubes ,Materials science ,Sorbent ,Gas Chromatography/Tandem Mass Spectrometry ,Analytical chemistry ,Solid-phase microextraction ,Biochemistry ,Gas Chromatography-Mass Spectrometry ,Hot Springs ,Analytical Chemistry ,Lakes ,chemistry.chemical_compound ,Rivers ,chemistry ,Boron nitride ,Adsorption ,Fiber ,Gas chromatography ,Polycyclic Aromatic Hydrocarbons ,Gas chromatography–mass spectrometry ,Solid Phase Microextraction ,Water Pollutants, Chemical - Abstract
Boron nitride nanotube (BNNT) is a novel material that shows potential ability in capturing organic pollutants. In this study, BNNTs fixed on a stainless steel fiber by a sol-gel technique were used as sorbent for solid-phase microextraction. Five polycyclic aromatic hydrocarbons with different numbers of aromatic rings were selected as target analysts. Gas chromatography coupled with tandem mass spectrometry was used for detection and quantitative determination. Under optimized conditions, the experimental results show a wide range of linearity (1 to 1,000 ng L(-1)), less than 10.1 % repeatability of relative standard deviation, and low detection limits (0.08 to 0.39 ng L(-1)). In addition, the fabricated fiber offered good thermal and chemical stability. The proposed method was successfully applied for the analysis of real water samples, and satisfactory results were obtained with relative recoveries ranging from 80.2 to 116.8 %. The results demonstrated that BNNTs could be used as sorbent for the analysis of environmental pollutants at trace levels.
- Published
- 2014