期刊
ANALYTICAL SCIENCES
卷 34, 期 4, 页码 453-457出版社
JAPAN SOC ANALYTICAL CHEMISTRY
DOI: 10.2116/analsci.17P517
关键词
Colorimetric probe; fluorescent probe; copper ion (Cu2+); picolinate; internal charge transfer (ICT)
资金
- National Science and Technology Support Planning subjects [2015BAD20B02-05]
- Municipal Development and Reform Commission Project of Jinan [2016JSFW02Z0307]
- Water conservancy science and technology project of Shandong Province [SDSLKY201606]
- National Nature Science Foundation of China [21607053, 21107029]
- Shandong Province Key Research and Development Project [2016GSF117010]
- Outstanding Young Scientists Award Fund of Shandong Province [BS2013HZ007]
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.
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