Determination of Er3+ using a highly selective and easy-to-synthesize fluorescent probe based on Rhodamine 6G

作者：Dai, Yan-na; Fei, Qiang; Shan, Hong-Yan; Huan, Yan-Fu; Feng, Guo-Dong^*

来源：Arabian Journal of Chemistry, 2019, 12(8): 1895-1901.

DOI：10.1016/j.arabjc.2014.12.006

• Fluorescence probe
• Rhodamine 6G
• Diethylenetriamine
• Enhancement
• Erbium ion

A inducible fluorescent ligand 2-(2-(2-amino-ethylamino) ethyl)-3',6'-bis (ethylamino)-2',7'-dimethy-lspiro[isoindoline-1,9'-xanthen]-3-one was synthesized and used as a fluorescent probe to detect Er3+. Er3+ could induce the structural transformation of the fluorescent ligand, resulting in a sharp fluorescence emission in a buffered solution. The fluorescence intensity of the fluorescent ligand was enhanced quantitatively with an increase in the concentration of erbium ion. The detection limit of Er3+ was 3.0 x 10(-10) mol L-1 (50 ng L-1) under optimized conditions. The method applied for the determination of Er3+ in four alloy samples had achieved satisfactory results.

• 出版日期2019-12
• 单位吉林大学