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Journal of Fluorescence

, Volume 17, Issue 6, pp 655–661 | Cite as

Spectrofluorimetric Determination of Dopamine Using Chlorosulfonylthenoyltrifluoroacetone–Europium Probe

  • Xiaojing Zhu
  • Xiaoxia Ge
  • Chongqiu Jiang
Original Paper

Abstract

A new spectrofluorimetric method was developed for the determination of trace amounts of dopamine (DA). Using chlorosulfonylthenoyltrifluoroacetone (CTTA)–europium ion (Eu3+) as a fluorescent probe, in a buffer solution at pH = 10.0, DA can remarkably enhance the fluorescence intensity of the CTTA-Eu3+ complex at λ = 612 nm; the enhanced fluorescence intensity of Eu3+ is proportional to the concentration of DA. Optimum conditions for the determination of DA were also investigated. The linear range and detection limit for the determination of DA were 5.0 × 10−8∼1.6 × 10−5 mol/l and 3.2 × 10−8 mol/l. This method is simple, practical and relatively free of interference from coexisting substances, and can be applied to assess DA in injection and human serum samples with good precision and accuracy.

Keywords

Dopamine Chlorosulfonylthenoyltrifluoroacetone Europium Spectrofluorimetry 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.College of Chemistry, Chemical Engineering and Materials ScienceShandong Normal UniversityJinanChina

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