Large enhancement of oscillating chemiluminescence with [Ru(bpy)3]2+‐catalyzed Belousov–Zhabotinsky reaction in the presence of tri‐n‐propylamine |
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| Authors: | Xiaolan Lan Baozhan Zheng Yan Zhao Hongyan Yuan Juan Du Dan Xiao |
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| Institution: | 1. College of Chemistry, Sichuan University, , Chengdu, 610064 People's Republic of China;2. College of Chemical Engineering, Sichuan University, , Chengdu, 610065 People's Republic of China |
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| Abstract: | Oscillating chemiluminescence enhanced by the addition of tri‐n‐propylamine (TPrA) to the typical Belousov–Zhabotinsky (BZ) reaction system catalyzed by ruthenium(II)tris(2.2'‐bipyridine)(Ru(bpy)32+) was investigated using a luminometry method. The Ru(bpy)3]2+/TPrA system was first used as the catalyst for a BZ oscillator in a closed system, which exhibited a shorter induction period, higher amplitude and much more stable chemiluminescence (CL) oscillation. The effects of various concentrations of TPrA, oxygen and nitrogen flow rate on the oscillating behavior of this system were examined. In addition, the CL intensity of the Ru(bpy)3]2+/TPrA–BZ system was found to be inhibited by phenol, thus providing a way for use of the BZ system in the determination of phenolic compounds. Moreover, the possible mechanism of the oscillating CL reaction catalyzed by Ru(bpy)3]2+/TPrA and the inhibition effects of oxygen and phenol on this oscillating CL system were considered. Copyright © 2012 John Wiley & Sons, Ltd. |
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| Keywords: | chemiluminescence [Ru(bpy)3]2+/TPrA Belousov– Zhabotinsky oscillator oxygen nitrogen effect phenol inhibition |
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