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DUAL-FREQUENCY OSCILLATIONS INDUCED BY BROMIDE ION

机译:溴离子引起的双频振荡

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摘要

The experimental behavior of the ferroin-catalyzed Belousov-Zhabotinskii (BZ)-type reaction with 3,4-dihydroxybenzoic acid as organic substrate has been investigated. It was found that the system displays two types of temporal oscillations depending on the initial concentration of bromide. When [Br-] is very high, damped high-frequency oscillations appear. When [Br-] is very low, low-frequency oscillations of the normal type are obtained. At moderate concentrations of bromide, both high-frequency and low-frequency oscillations can be monitored with a bromide ion selective electrode. The mechanism of the dual-frequency oscillation is discussed. [References: 17]
机译:研究了以3,4-二羟基苯甲酸为有机底物的铁蛋白催化的Belousov-Zhabotinskii(BZ)型反应的实验行为。发现该系统根据溴化物的初始浓度显示两种类型的时间振荡。当[Br-]很高时,会出现阻尼的高频振荡。当[Br-]非常低时,可获得正常类型的低频振荡。在溴化物浓度适中时,可以用溴化物离子选择电极监测高频和低频振荡。讨论了双频振荡的机理。 [参考:17]

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