Jump to main content
Jump to site search

Issue 29, 2015
Previous Article Next Article

A phthalazine-based two-in-one chromogenic receptor for detecting Co2+ and Cu2+ in an aqueous environment

Author affiliations

Abstract

A new multifunctional and highly selective chemosensor 1 for Co2+ and Cu2+ was designed and synthesized. 1 could simultaneously detect both Co2+ and Cu2+ by changing its color from pale yellow to pink and to orange in a near-perfect aqueous solution. The binding modes of 1 to Co2+ and Cu2+ were determined to be a 2 : 1 complexation stoichiometry through Job's plot, ESI-mass spectrometry analysis and 1H NMR titration. The detection limits (1.5 and 2.1 μM) of 1 for Co2+ and Cu2+ were lower than the DEP guidelines (1.7 μM for Co2+) and the WHO guidelines (31.5 μM for Cu2+) for drinking water. The chemosensor 1 could be used to quantify Co2+ and Cu2+ in water samples. Moreover, 1 could be used as a practical, visible colorimetric test kit for both Co2+ and Cu2+. The sensing mechanisms of Co2+ and Cu2+ by 1 were supported by theoretical calculations.

Graphical abstract: A phthalazine-based two-in-one chromogenic receptor for detecting Co2+ and Cu2+ in an aqueous environment

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Mar 2015, accepted on 15 Jun 2015 and first published on 01 Jul 2015


Article type: Paper
DOI: 10.1039/C5DT00957J
Author version
available:
Download author version (PDF)
Dalton Trans., 2015,44, 13305-13314

  •   Request permissions

    A phthalazine-based two-in-one chromogenic receptor for detecting Co2+ and Cu2+ in an aqueous environment

    J. J. Lee, Y. W. Choi, G. R. You, S. Y. Lee and C. Kim, Dalton Trans., 2015, 44, 13305
    DOI: 10.1039/C5DT00957J

Search articles by author

Spotlight

Advertisements