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A novel fluorescent epoxy resin for organophosphate pesticide detection

Hong-Xing Zhang ,  Ren-Bo Wei ,  Chuan-Zhi Chen ,  Xin-Lin Tuo ,  Xiao-Gong Wang

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Citation:  Hong-Xing Zhang, Ren-Bo Wei, Chuan-Zhi Chen, Xin-Lin Tuo, Xiao-Gong Wang. A novel fluorescent epoxy resin for organophosphate pesticide detection[J]. Chinese Chemical Letters, 2015, 26(1): 39-42. doi: 10.1016/j.cclet.2014.10.014 shu

A novel fluorescent epoxy resin for organophosphate pesticide detection

    • 通讯作者: Xiao-Gong Wang,
  • 基金项目:

    Financial supports from the Research Foundation of the General Armament Department (No. 2008 CD 012) are gratefully acknowledged. (No. 2008 CD 012)

摘要: In this work, a novel bisbenzimidazolylpyridine-functionalized fluorescent epoxy resin was synthesized for organophosphate pesticide detection. The epoxy resin was characterized by Fourier-transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance spectroscopy (1H NMR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and fluorescence spectroscopy. After loading with Eu(Ⅲ) ions, the epoxy resin showed a strong fluorescence emission. The fluorescence emission was observed to be instantaneously quenched when exposed to trace amount of diethyl chlorophosphate in solution. The Stern-Volmer quenching constants Ksv for quenching at 617 nm was determined to be 0.377×103 L/mol. This sensitive emission-quenching function and easy processing nature of the polymeric support enable the resin to be a promising chemosensor candidate for the detection of organophosphates.

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  • 发布日期:  2014-10-22
  • 收稿日期:  2014-08-18
  • 网络出版日期:  2014-09-29
通讯作者: 陈斌, bchen63@163.com
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