四溴双酚A
固相萃取
双酚A
纳米颗粒
萃取(化学)
化学
色谱法
相(物质)
磁性纳米粒子
化学工程
核化学
阻燃剂
材料科学
纳米技术
有机化学
环氧树脂
工程类
作者
Jia Li,Xingyu Long,Hexing Yin,Jun‐qin Qiao,Hong‐zhen Lian
标识
DOI:10.1002/jssc.201600231
摘要
Polydopamine‐coated Fe 3 O 4 magnetic nanoparticles synthesized through a facile solvothermal reaction and the self‐polymerization of dopamine have been employed as a magnetic solid‐phase extraction sorbent to enrich four phenolic compounds, bisphenol A, tetrabromobisphenol A, ( S )‐1,1′‐bi‐2‐naphthol and 2,4,6‐tribromophenol, from environmental waters followed by high‐performance liquid chromatographic detection. Various parameters of the extraction were optimized, including the pH of the sample matrix, the amount of polydopamine‐coated Fe 3 O 4 sorbent, the adsorption time, the enrichment factor of analytes, the elution solvent, and the reusability of the nanoparticles sorbent. The recoveries of these phenols in spiked water samples were 62.0–112.0% with relative standard deviations of 0.8–7.7%, indicating the good reliability of the magnetic solid‐phase extraction with high‐performance liquid chromatography method. In addition, the extraction characteristics of the magnetic polydopamine‐coated Fe 3 O 4 nanoparticles were elucidated comprehensively. It is found that there are hydrophobic, π–π stacking and hydrogen bonding interactions between phenols and more dispersible polydopamine‐coated Fe 3 O 4 in water, among which hydrophobic interaction dominates the magnetic solid‐phase extraction performance.
科研通智能强力驱动
Strongly Powered by AbleSci AI