【摘要】 <正> 迄今为止,Belousov-Zhabotinskii（B-Z）振荡反应中Br^-浓度^CBr^-的变化主要用Br^-选择电极跟踪监测,取得了一定的成果。但是有一些研究表明,由于受到体系中KBrO₃等物种的干扰,Br^-选择电极的信号在定性和定量上都不一定是Br^-行为的真实反映。Noyes更多还原

【Abstract】 Method of cyclic voltammetry for static systems has been modified through its recording system in order to apply it to follow the oscillating change of concentrations of some species in a chemical oscillation reaction. In this paper, oscillation of the concentration of bromide-ion in Melonic-acid-KBrO₂-H₂SO₄-MnSO₄ systems was followed by this modified method. It was found that, for systems investigated in this paper, the bromide-ion concentrations oscillate in the range of IO^-4 mol dm^-3 which is 1-2 orders of magnitude higher than that observed by the bromide-ion selective electrode. A frozen-titration method for bromide-ion was also used to check the result which was found to be in agreement with that of the modified method.更多还原