Graphene-Derivatized Silica Composite as Solid-Phase Extraction Sorbent Combined with GC-MS/MS for the Determination of Polycyclic Musks in Aqueous Samples

被引:14
作者
Li, Cheng [1 ,2 ]
Chen, Jiayi [1 ,2 ]
Chen, Yan [1 ,2 ]
Wang, Jihua [1 ]
Ping, Hua [1 ]
Lu, Anxiang [1 ,2 ]
机构
[1] Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Agr Stand & Testing, Beijing 100097, Peoples R China
[2] Beijing Municipal Key Lab Agr Environm Monitoring, Beijing 100097, Peoples R China
来源
MOLECULES | 2018年 / 23卷 / 02期
基金
北京市自然科学基金; 中国国家自然科学基金;
关键词
graphene; solid-phase extraction; polycyclic musks; water; GC-MS/MS; PHTHALATE ACID-ESTERS; WATER SAMPLES; ENVIRONMENTAL WATER; GAS-CHROMATOGRAPHY; MASS-SPECTROMETRY; AROMATIC-HYDROCARBONS; MAGNETIC GRAPHENE; SYNTHETIC MUSKS; RISK-ASSESSMENT; SURFACE WATERS;
D O I
10.3390/molecules23020318
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Polycyclic musks (PCMs) have recently received growing attention as emerging contaminants because of their bioaccumulation and potential ecotoxicological effects. Herein, an effective method for the determination of five PCMs in aqueous samples is presented. Reduced graphene oxide-derivatized silica (rGO@silica) particles were prepared from graphene oxide and aminosilica microparticles and characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. PCMs were preconcentrated using rGO@silica as the solid-phase extraction sorbent and quantified by gas chromatography-tandem mass spectrometry. Several experimental parameters, such as eluent, elution volume, sorbent amount, pH, and sample volume were optimized. The correlation coefficient (R) ranged from 0.9958 to 0.9992, while the limits of detection and quantitation for the five PCMs were 0.3-0.8 ng/L and 1.1-2.1 ng/L, respectively. Satisfactory recoveries were obtained for tap water (86.6-105.9%) and river water samples (82.9-107.1%), with relative standard deviations <10% under optimal conditions. The developed method was applied to analyze PCMs in tap and river water samples from Beijing, China. Galaxolide (HHCB) and tonalide (AHTN) were the main PCM components detected in one river water sample at concentrations of 18.7 for HHCB, and 11.7 ng/L for AHTN.
引用
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页数:11
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