Large enhancement of oscillating chemiluminescence with [Ru(bpy)3 ](2+) -catalyzed Belousov-Zhabotinsky reaction in the presence of tri-n-propylamine.
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)3 (2+) ) 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.
College of Chemistry, Sichuan University, Chengdu, 610064, People's Republic of China.
Xiaolan
X
Lan
Baozhan
B
Zheng
Yan
Y
Zhao
Hongyan
H
Yuan
Juan
J
Du
Dan
D
Xiao
D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D002384:Catalysis; D056831:Coordination Complexes; D049449:Luminescence; D008163:Luminescent Measurements; D010636:Phenols / Q000032:analysis; D011437:Propylamines / Q000737:chemistry*; D017975:Ruthenium Compounds
D015082:2,2'-Dipyridyl; D056831:Coordination Complexes; D010636:Phenols; D011437:Propylamines; C547232:tris(2,2-bipyridine)-ruthenium(II); D017975:Ruthenium Compounds; C096226:tripropylamine