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A novel coumarin-based fluorescent probe for sensitive detection of copper(II) in wine

Author:
Wu, Xiaoming, Wang, Hao, Yang, Shaoxiang, Tian, Hongyu, Liu, Yongguo, Sun, Baoguo
Source:
Food chemistry 2019 v.284 pp. 23-27
ISSN:
0308-8146
Subject:
copper, detection limit, fluorescence, fluorescent dyes, wines
Abstract:
A novel coumarin-based fluorescent probe (probe 1) for the detection of copper(II) was developed. The fluorescence intensity of probe 1 showed a linear relationship with the concentration of copper(II) in the range 0–16 μM (0–1.02 mg/L) and the limit of detection was 62 nM (3.94 µg/L). The luminescence of probe 1 at the maximum allowable amounts of copper(II) in wine and water could be observed with the naked eye under a 365-nm ultraviolet lamp. Moreover, probe 1 was successfully used for the qualitative and quantitative detection of copper(II) in wine.
Agid:
6285171