Tris(2,2′-bipyridine)ruthenium(II)/thiosemicarbazide electrochemiluminescence for the detection of thiosemicarbazide and mercury (II)

Tesfaye Hailemariam Barkae,Fan Yuan,Tadesse Haile Fereja,Shimeles Addisu Kitte,Xiangui Ma,Wei Zhang,Guobao Xu

doi:10.1016/j.electacta.2021.138171

Tris(2,2′-bipyridine)ruthenium(II)/thiosemicarbazide electrochemiluminescence for the detection of thiosemicarbazide and mercury (II)

Tesfaye Hailemariam Barkae, Fan Yuan + Show 5 more

https://doi.org/10.1016/j.electacta.2021.138171

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Journal: Electrochimica Acta	Publication Date: Mar 20, 2021
Citations: 9

Affiliation: Wolkite University, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Science and Technology of China, Ambo University, Jimma University

#Thiosemicarbazide #Electrochemiluminescence + Show 8 more

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Abstract

Developing the simple, robust, sensitive and cost-effective method for the detection of thiosemicarbazide (TSC) and Hg2+ is of great significance. Herein we developed TSC as an effective coreactant of Ru(bpy)32+ electrochemiluminescence (ECL) and have found that Hg2+can inhibit the ECL intensity of Ru(bpy)32+/TSC system dramatically. Therefore, the developed Ru(bpy)32+/TSC ECL system was applied for the detection of TSC and Hg2+ with the linear range of 0.1 μM to 1000 μM and 0.5 to 60 μM (LOD = 0.03 μM), respectively. For practical sample detection, the detection recovery of the amount of TSC and Hg2+ in the lake water ranges from 97% to 101.1% and 92% to 101%, respectively.

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