CIESC Journal ›› 2015, Vol. 66 ›› Issue (2): 591-596.DOI: 10.11949/j.issn.0438-1157.20141041

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Specific colorimetric probe for Cu(Ⅱ) in aqueous solution and its application in indicator paper

YANG Hongbao, DU Jianjun, ZOU Li, ZHU Hao, JIANG Na, PENG Xiaojun   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2014-07-11 Revised:2014-08-28 Online:2015-02-05 Published:2015-02-05
  • Supported by:

    supported by the National Natural Science Foundation of China (21136002) and the National Basic Research Program of China (2013CB733702).

染料探针分子对水中铜离子的可视化识别及试纸化应用

杨洪宝, 杜健军, 邹立, 朱浩, 姜娜, 彭孝军   

  1. 大连理工大学精细化工国家重点实验室, 辽宁 大连 116024
  • 通讯作者: 彭孝军
  • 基金资助:

    国家自然科学基金项目(21136002);国家重点基础研究发展计划项目(2013CB733702)。

Abstract:

A new Rhodamine derivative RCu was designed and synthesized as a colorimetric probe for Cu(Ⅱ) with high selectivity. RCu itself has no color in HEPES buffer solution (2×10-5 mol·L-1, pH 7.4). With Cu2+ added, the solution turns into pink color, but without change in color with other common metal cations. The probe can recognize Cu2+ at low concentrations and the detection limit is 6.37×10-8 mol·L-1. Meanwhile, the probe can detect Cu2+ in water samples at lower concentrations by indicator paper, indicative of its great potential applications.

Key words: dye, probe, image, molecular engineering, chemical analysis, organic compound, synthesis, biomedical engineering, product engineering

摘要:

设计合成了以罗丹明为母体的探针分子RCu,可实现对Cu2+的选择性识别。在HEPES缓冲溶液(2×10-5 mol·L-1, pH 7.4)的测试体系中RCu本身无颜色,加入Cu2+后溶液变为粉红色,而且加入其他常见金属阳离子无颜色变化。探针分子可识别较低浓度的Cu2+,检出限可达6.37×10-8 mol·L-1。同时探针分子可用于试纸化检测,对水样中的Cu2+可实现低浓度的检测,具有一定的实用价值。

关键词: 染料, 探针, 成像, 分子工程, 化学分析, 有机化合物, 合成, 生物医学工程, 产品工程

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