A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+

Qi Hua You, Hua Bin Huang, Zhi Xia Zhuang, Xiao Ru Wang, Wing Hong CHAN

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+ has been designed and investigated. The probe shows an immediate visual color change in response to Fe3+ and Cu2+, while only Fe3+ triggers the fluorescent change of the probe. The existence of large amount of other metal ions shows negligible interference in the detection of Fe3+. The association constant Kass of 4.64 × 108 M-2 (R2 = 0.994) and 5.38 × 108 M-2 (R2 = 0.991) of the complex was derived from UV/Vis and fluorescence titration assuming 1:2 stoichiometry of probe-Fe3+ complex, respectively.

Original languageEnglish
Pages (from-to)1772-1777
Number of pages6
JournalBulletin of the Korean Chemical Society
Volume37
Issue number11
DOIs
Publication statusPublished - 1 Nov 2016

Scopus Subject Areas

  • Chemistry(all)

User-Defined Keywords

  • Fe
  • Fluorescent probe
  • Rhodamine B

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