Periodic pulses of calcium ions in a chemical system.
نویسندگان
چکیده
By coupling the bromate-sulfite-ferrocyanide oscillating chemical reaction with the complexation of calcium ion by EDTA, we construct a system that generates periodic pulses of free Ca(2+) with an amplitude of 2 orders of magnitude and a period of ca. 20 min. These pulses may be observed either with a calcium ion-selective electrode or with Arsenazo(III) as an indicator. We describe the systematic design procedure and the properties of this first abiotic calcium-based chemical oscillator.
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ورودعنوان ژورنال:
- The journal of physical chemistry. A
دوره 110 24 شماره
صفحات -
تاریخ انتشار 2006