SciELO - Scientific Electronic Library Online

 
vol.38 issue10ANION-BINDING AND SENSING PROPERTIES OF NOVEL RECEPTORS BASED ON N-(INDOL-3-YLGLYOXYLYL)BENZYLAMINEMATHEMATICAL PROCESSING COMPARISON OF VOLTAMMETRIC DATA: APPLICATION WITH THE SIMULTANEOUS DETERMINATION OF FLUOROQUINOLONES author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Química Nova

Print version ISSN 0100-4042On-line version ISSN 1678-7064

Abstract

LV, Yongjun. Fe3+-SELECTIVE ENHANCED FLUORESCENCE PROBE BASED ON A RHODAMINE DERIVATIVE. Quím. Nova [online]. 2015, vol.38, n.10, pp.1297-1299. ISSN 1678-7064.  https://doi.org/10.5935/0100-4042.20150138.

A novel Fe3+-selective and turn-on fluorescent probe 1 incorporating a rhodamine fluorophore and quinoline subunit was synthesized. Probe 1 displayed high selectivity for Fe3+ in CH3CN–H2O (95:5 v/v) in the presence of other relevant metal cations. Interaction with Fe3+ in 1:1 stoichiometry could trigger a significant fluorescence enhancement due to the formation of the ring-open form. The fluorescent response images were investigated by a novel Euclidean distance method based on red, green, and blue values. A linear relationship was observed between fluorescence intensity changes and Fe3+ concentrations from 7.3 × 10−7 to 3.6 × 10−5 mol L−1.

Keywords : fluorescence; iron probe; Euclidean distance.

        · text in English     · English ( pdf )