The theoretical description for the electrochemical determination of 4-4´-dihydroxyazobenzene, assisted by a composite of squaraine dye with cobalt (iii) oxyhydroxide in pair with cobalt (iv) oxide

Abstract

<p>The theoretical description for 4-4´-dihydroxyazobenzene CoO(OH) – assisted electrochemical determination in the mushroom pulp, food, and biological liquids has been described. In this system, a squaraine dye is used as a Cobalt(III)oxyhydroxide stabilizer and electron transfer mediator. It is shown that, contrary to the large part of the systems with cobalt (III) oxyhydroxide, this system will behave more stably, providing an efficient diffusion-controlled process. On the other hand, the oscillatory and monotonic instabilities, although possible, are caused by the double electric layer influences of either chemical or electrochemical stage.</p>

Untitled

“…2. In this case, the system's behavior will be similar to that observed for benzodiazepines, described in [49]. Therefore, it will be described briefly in this system.…”

“…These are the elements 1 (1 − − * ) exp( )and −1 exp(− ), describing the attraction between the colorant adsorbed particles, like also the elements 2 exp ( ), − 2 exp ( )and 2 * exp ( ), describing the DEL influences on the electrochemical stages. Both of the influences are characteristic for similar systems [46][47][48][49].…”

“…As in [49], the system will include the so-called "hydrogen evolution" and will be described by a tridimensional differential equation system, as:…”

Electrochemical Determination of Sudan Dyes and Two Manner to Realize it: a Theoretical Investigation

“…These are the elements𝛼𝑘 ), describing the DEL influences on the electrochemical stages. Both of the influences are characteristic for similar systems [46][47][48][49].…”

“…-the possibility of the electrochemical instabilities, characteristic for either cathodic or anodic transformation of organic compounds (including the electropolymerization) [41][42][43][44][45];…”