A magnetic copper(II)-imprinted polymer for the selective enrichment of trace copper(II) ions in environmental water

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• 作者：Xubiao Luo (12) luoxubiao@126.com
  Yining Huang (12)
  Fang Deng (12)
  Shenglian Luo (12) sllou@hnu.edu.cn
  Youcai Zhan (12)
  Hongying Shu (12)
  Xinman Tu (12)
• 关键词：Magnetic ion imprinted polymers – ; Enrichment – ; Flame atomic absorption spectrometry – ; Cu(II) determination
• 刊名：Microchimica Acta
• 出版年：2012
• 出版时间：November 2012
• 年：2012
• 卷：179
• 期：3-4
• 页码：283-289
• 全文大小：406.0 KB
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• 作者单位：1. Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang, 330063 People鈥檚 Republic of China2. College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063 People鈥檚 Republic of China
• ISSN：1436-5073

文摘

We have developed a convenient, selective and reliable method for the rapid enrichment of trace quantities of Cu(II) by using a magnetic Cu(II) ion-imprinted polymer. This is followed by their determination by FAAS. The imprints were prepared by using (a) Cu(II) ions as the template, (b) 3-aminopropyltriethoxysilane as both the functional monomer and the crosslinking agent, and (c) Fe₃O₄ as the magnetic component. Enrichment is carried out in a single step, and adsorbed copper ions can be separated from the sample solution by applying a strong magnet. The effects of pH, elution condition, amount of imprint, and of potentially interfering ions were evaluated. Under the optimal conditions, the detection limit and enrichment factor are 0.3 μg L−1 and 100, respectively, and the recovery is >95 %. The procedure was successfully applied in the enrichment and detection of trace copper ions in environmental water.