Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (02): 241-246.DOI: 10.19894/j.issn.1000-0518.210041

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Synthesis of a Novel Water-Soluble Rhodamine-Based Fluorescent Probe and Its Selective Detection of Free Trivalent Ions

Shu-Hua HOU, Shi-Qi LI, Li-Jun TANG()   

  1. College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China
  • Received:2021-01-23 Accepted:2021-07-07 Published:2022-02-10 Online:2022-02-09
  • Contact: Li-Jun TANG
  • Supported by:
    National Natural Science Foundation of China(21878023);Liaoning Revitalization Talents Program and Liaoning Provincial Education Department(LQJ2019005)

Abstract:

A novel water-soluble probe (L) is designed and synthesized based on rhodamine B. The results indicate that probe L is a "turn-on" fluorescent probe with high selectivity for free M3+ (Cr3+, Al3+, Fe3+) detection in pure water system (TRIS, pH=7.4). The detection limits of probe L to Cr3+, Al3+, and Fe3+ are 1.57×10-5, 1.43×10-5, and 6.55×10-5mol/L, respectively. The probe L has potential applications in detection of trivalent metal ions in biological systems and environments.

Key words: Probe, Ion recognition, Fe3+, Al3+, Cr3+

CLC Number: