Nonenzymatic chemiluminescence resonance energy transfer: an efficient technique for selective and sensitive detection of silver ion

作者：Zhao, Shulin^*; Qin, Guoxin; Huang, Yong; Li, Shuting; Lu, Xin; Jiang, Jing; Ye, Fanggui

来源：Analytical Methods, 2012, 4(7): 1927-1931.

DOI：10.1039/c2ay25404b

• CDSE/ZNS QUANTUM DOTS
• GRAPHENE OXIDE
• LOGIC GATE
• AG+ IONS
• CYSTEINE
• SENSOR
• CRET
• DNA

A sensitive nonenzymatic chemiluminescence method was developed for the detection of silver ions. The assay is based on chemiluminescence resonance energy transfer (CRET) between luminol and fluorescein with the formation of a ternary complex between fluorescein, phenanthroline (Phen) and silver ion. Standard solutions containing silver ions in the concentration range of 1.0 x 10(-7) M to 2.5 x 10(-4) M were examined by the proposed procedure and it was observed that the calibration curve obtained was linear in this range with a correlation coefficient of 0.9993. The detection limit for silver ion was estimated to be 5.0 x 10(-8) M. Advantages of the proposed method is its high selectivity and low detection limits compared with other methods.

• 出版日期2012-7
• 单位广西师范大学