A Fluorescent and Colorimetric Probe Based on Isatin-appended Rhodamine for the Detection of Hg2+

作者：Chen Jiayi; Shu Wei; Wang Enju^*

来源：Chemical Research in Chinese Universities, 2016, 32(5): 742-745.

DOI：10.1007/s40242-016-6001-1

• Fluorescent probe
• Isatin
• Rhodamine B
• Mercury(II) ion

A new fluorescent probe for the detection of Hg2+ was designed and synthesized via attaching N-methylisatin to rhodamine B hydrazide through an imine linkage. In an ethanol-Tris buffer medium, the addition of Hg2+ caused a strong orange fluorescence and a visual color change from colorless to pink. Other coexisting metal ions did not interfere with the detection of Hg2+. The research on the detection of Hg2+ in natural water suggested the possibility of practical applications in environment monitoring. Based on ESI-MS analysis, the He -sensing mechanism was proposed.

• 出版日期2016-10
• 单位海南师范大学