Determination of Alizarin Red S using a novel B-Z oscillation system catalyzed by a tetraazamacrocyclic complex |
| |
| Authors: | Gang Hu Lulu Chen Jinfeng Zhang Panpan Chen Wei Wang Jimei Song Lingguang Qiu Juan Song Lin Hu |
| |
| Institution: | (1) Department of Chemistry, Anhui University, Hefei, 230039, P. R. China;(2) Institute of Applied Chemistry, East China Jiaotong University, Nanchang, 330013, P. R. China |
| |
| Abstract: | A new and convenient method for the determination of Alizarin Red S by the perturbations caused by different amounts of Alizarin
Red S on a novel B-Z oscillating system is proposed. This new type Belousov-Zhabotinskii involves a macrocyclic copper(II)
complex CuL](ClO4)2 as catalyst and malic acid as the substrate. The ligand L in the complex is 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene.
It is found that the relationship between the change in the oscillation amplitude and the logarithm of the Alizarin Red S
concentration in the range of 1.5 × 10−7 to 1 × 10−3 M fits a polynomial model: ΔA = 659 + 184.2 log Alizarin Red S]+ 12.9 log2 Alizarin Red S]. The RSD obtained with ten samples is 4.4%. The probable mechanism involving the perturbation of Alizarin
Red S on the oscillating chemical system is also discussed.
 |
| |
| Keywords: | Kinetic determination Alizarin Red S Tetraazamacrocyclic complex Belousov-Zhabotinskii reaction |
| 本文献已被 SpringerLink 等数据库收录！ |
|
