A Colorimetric and Fluorescent Probe for the Detection of Cu2+ in a Complete Aqueous Solution

作者：Xu, Jing; Wang, Zuokai; Liu, Caiyun^*; Xu, Zhenghe^*; Zhu, Baocun; Wang, Ning; Wang, Kun; Wang, Jiangting

来源：Analytical Sciences, 2018, 34(4): 453-457.

DOI：10.2116/analsci.17P517

• Colorimetric probe
• fluorescent probe
• copper ion (Cu2+)
• picolinate
• internal charge transfer (ICT)

The fluorescent probe has become an important method for the detection of heavy metal ions. In the present work, a new and simple fluorescent probe, Cu-P, for detecting copper ion (Cu2+) was designed and synthesized. The probe has shown high sensitivity and selectivity toward Cu2+. The detection limit was 13 nM (based on the 3 sigma/slope). A significant color change from yellow to pink was observed; thus, the probe Cu-P could serve as a "naked-eye" indicator for Cu2+. Furthermore, the proposed probe was used to detect Cu2+ in real water and soil extract samples, with the result being satisfactory. Therefore, our proposed probe would provide a promising method for the detection of Cu2+ in the environment.

• 出版日期2018-4
• 单位济南大学