New coumarin-based dual chromogenic probe: Naked eye detection of copper and silver ions

作者：Bhorge Yeshwant Ramchandra; Chou Tzu Ling; Chen Yan Zi; Yen Yao Pin

来源：Sensors and Actuators B: Chemical , 2015, 220: 1139-1144.

DOI：10.1016/j.snb.2015.06.059

• Dual recognition
• Cu2+ and Ag+ ions
• Coumarin-based
• Aqueous medium
• Chromogenic

A new coumarin-based probe 1 was prepared for the detection of Cu2+ and Ag+ in aqueous solutions. Probe 1 shows highly selective and sensitive chromogenic recognition toward Cu2+ and Ag+, before and after exposure to natural sunlight, respectively. The selectivity toward Cu2+ or Ag+ was not interfered with by other metal ions. The detection limits for Cu2+ and Ag+ ion were determined as (7.99 +/- 0.04) x 10(-6) (M) and (8.60 +/- 0.04) x 10(-10) M, respectively. Thus, the probe 1 can be used as a practical, highly sensitive chromogenic probe for the determination of Cu2+ and Ag+ in aqueous medium.

• 出版日期2015-12-1