期刊
TALANTA
卷 144, 期 -, 页码 1329-1335出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2015.08.014
关键词
Magnetic graphene@polydopamine@Zr-MOF; Bisphenols; Magnetic solid-phase extraction; High performance liquid chromatography; Environmental samples
资金
- National Basic Research Priorities Program [2012CB910602, 2013CB911201]
- National Natural Science Foundation of China [21425518, 21075022, 21275033, 21105016]
- Research fund for the Doctoral Program of Higher Education of China [20110071110007, 20100071120053]
In this work, a simple method for the extraction and analysis of bisphenols in environmental samples was presented. And the prepared zirconium-based magnetic MOFs (magG@PDA@Zr-MOF) were used as the sorbents for the magnetic solid-phase extraction. With the simple solvothermal reaction and sol-gel method, the prepared material showed great characteristics of large surface area, homogeneous pore size, good magnetic responsivity and super-hydrophilicity. The large surface area provided abundant sites to extract target compounds; the magnetic property could simplify the whole extraction procedure; and the hydrophilicity improved the dispersibility of the material in matrix. Here, various extraction parameters were optimized, including amounts of sorbents, adsorption time, species of elution solvents and desorption time. The whole extraction procedure could be accomplished in 30 min. And under the optimized conditions, method validations were also studied, such as linearity, the limit of detection and recovery. Finally, the prepared material was used in real water samples. The results showed this material had good potential as the sorbent for the extraction of targets in environmental water samples. (C) 2015 Elsevier B.V. All rights reserved.
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