Abstract
A new methodological approach for the determination of Ag+ by the perturbations caused by different amounts of Ag+ on a novel Belousov-Zhabotinskii oscillating system is proposed. Such a novel oscillating system involves the participation of an unsaturated macrocyclic Cu(II) complex, [CuL](ClO4)2, as catalyst and malic acid as substrate. The ligand L in the complex is 5,7,7,12,14,14-hexemethyl-1,4,8,11-tetraazacy-clotetradeca-4,11-diene. The linear relationship between the change in the oscillating period of the chemical system and the logarithm of [Ag+] is found in the range 6.25 × 10−5 to 1.00 × 10−7 M. The obtained RSD is 0.8%. The probable mechanism involving the perturbation of Ag+ is also discussed.
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Hu, L., Hu, G. & Xu, H.H. Kinetic determination of Ag+ using a novel Belousov-Zhabotinskii oscillating system catalyzed by a macrocyclic complex. J Anal Chem 61, 1021–1025 (2006). https://doi.org/10.1134/S1061934806100133
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DOI: https://doi.org/10.1134/S1061934806100133