Back to Search Start Over

A colorimetric probe for detection of Cu2+ by the naked eye and application in test paper.

Authors :
Cao, Xiaorui
Gao, Qi
He, Xiaotao
Bai, Yinjuan
Sun, Wei
Source :
Luminescence: Journal of Biological & Chemical Luminescence; Aug2020, Vol. 35 Issue 5, p651-658, 8p
Publication Year :
2020

Abstract

A novel colorimetric probe RP1 was synthesized using rhodamine derivatives and heterocyclic compounds for the purpose of detecting Cu2+. RP1 showed good selectivity, high sensitivity and affinity toward Cu2+ over other competing ions in CH3OH–H2O (1/1, v/v) solution. Absorbance intensity showed a good linear fit between probe R1 and Cu2+ over the concentration range 1–8 μM and the association constant was also calculated to be 1.145 × 105 M−1. The sensing mechanism was deduced using Job's plot, Fourier transform infrared spectroscopy, and density functional theory studies. In addition, the colorimetric experiment indicated that probe RP1 could be made into test paper to detect Cu2+ with a colour change from colourless to pink. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15227235
Volume :
35
Issue :
5
Database :
Complementary Index
Journal :
Luminescence: Journal of Biological & Chemical Luminescence
Publication Type :
Academic Journal
Accession number :
144472827
Full Text :
https://doi.org/10.1002/bio.3769