Synthesis of a novel hyperbranched polymer and its application in multi-channel sensing Fe3+

  • Tengxuan Tang
  • Jing Wang
  • Dongmei XuEmail author


A novel hyperbranched polymer was designed and synthesized as a spectral probe for Fe3+. The polymer showed high selectivity and sensitivity to Fe3+ in CH3CN/H2O (75/25, v/v). Fe3+ caused a new peak at 560 nm in UV–Vis absorption, a 31 nm fluorescence redshift, a 35-fold enhancement in fluorescence intensity at 575 nm and an 8.3-fold enhancement in fluorescence quantum yield, accompanied by a visual color change from colorless to pink and a fluorescence from dark to bright orange. The colorimetric and fluorescent detection limits were 1.29 and 1.88 µM, respectively. The detection was almost not interfered by other common metal cations. The polymer could be applied in assaying Fe3+ in real sample with similar precision to that of atomic absorption spectroscopy.


Hyperbranched polymer Rhodamine Probe Fe3+ 



This work was supported by the National Natural Science Foundation of China (21074085), and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Supplementary material

11164_2019_4042_MOESM1_ESM.docx (329 kb)
Supplementary material 1 (DOCX 329 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.College of Chemistry, Chemical Engineering and Materials ScienceSoochow UniversitySuzhouChina

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