吸附剂
固相萃取
气相色谱-质谱法
水溶液
萃取(化学)
复合数
化学
色谱法
环境化学
材料科学
质谱法
有机化学
吸附
复合材料
作者
Cheng Li,Jiayi Chen,Yan Cui,Jihua Wang,Ping-Rang Hua,Anxiang Lu
出处
期刊:Molecules
[MDPI AG]
日期:2018-02-02
卷期号:23 (2): 318-318
被引量:14
标识
DOI:10.3390/molecules23020318
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI