Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (2): 236-238.doi: 10.1007/s40242-013-2395-1

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Novel Receptor for the Rapid Reaction and Colorimetric Detection of HSO3- in Aqueous Solutions

YANG Wen-long, LI Qiao, WEI Tai-bao, ZHANG You-ming, LIN Qi, SHI Bing-bing, ZHANG Peng   

  1. Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
  • Received:2012-10-15 Revised:2013-01-16 Online:2013-04-01 Published:2013-03-20
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.21064006, 21161018), the Natural Science Foundation of Gansu Province, Chain(No.1010RJZA018) and the Program for Changjian Scholars and Innovative Research Team in University of Minisry of Education of China(No.IRT1177).

Abstract:

A novel high-yield Schiff base was designed and synthesized as an anion receptor that specifically select HSO3- anions in aqueous solutions of H2O/DMSO(15:85, volume ratio), which can be detected via colorimetry under direct visualization. The sensor exhibited different results for other anions, such as F-, Cl-, Br-, I-, H2PO4-, AcO-, HSO4- and ClO4-. The changes in the UV-Vis spectra also show the specific recognition of HSO3-, rather than similar anions H2PO4- and HSO4- in the same aqueous solution. The detection limit of HSO3- was 1×10-6 mol/L.

Key words: Bisulfite anion sensor, 2-Aminobenzimidazole, Aqueous solution, Single recognition, Colorimetry