Different influences of adrenaline on the Bray–Liebhafsky and Briggs–Rauscher iodate based oscillating reactions

Bubanja, Itana Nuša; Pagnacco, Maja C.; Maksimović, Jelena P.; Stevanović, Kristina; Stanisavljev, Dragomir R.

doi:10.1007/s11144-017-1305-9

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…[19][20][21] Based on this observation, the BR reaction was successfully applied as a test tool for measuring the concentration of different analytes and their potential antioxidative/antiradical activity. [19][20][21]24 Our recently published results 25 indicate that the same concentrations of analyte give a completely different influence on the dynamics of the BL and BR system. Even though UV/VIS spectroscopy determined that analyte interacts in both BL and BR reactions with respective stable chemical species, changes of dynamical states after analyte (adrenaline) addition (for applied experimental conditions) have occurred only for BR system.…”

Section: Introductionmentioning

confidence: 82%

“…Even though UV/VIS spectroscopy determined that analyte interacts in both BL and BR reactions with respective stable chemical species, changes of dynamical states after analyte (adrenaline) addition (for applied experimental conditions) have occurred only for BR system. 25 The recent results point out the importance of examination of analyte interaction in both iodate based oscillators, in order to potentially clarify the mechanism of analyte acting.…”

Section: Introductionmentioning

confidence: 99%

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Insight into the Origin of Pyrocatechol Inhibition on Oscillating Bray-Liebhafsky Reaction: Combined Experimental and Theoretical Study

Maksimović

Tošović

Pagnacco

2020

Bulletin of the Chemical Society of Japan

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Advance Publication is a service for online publication of manuscripts prior to releasing fully edited, printed versions. Entire manuscripts and a portion of the graphical abstract can be released on the web as soon as the submission is accepted. Note that the Chemical Society of Japan bears no responsibility for issues resulting from the use of information taken from unedited, Advance Publication manuscripts.

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Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Insight into the Origin of Pyrocatechol Inhibition on Oscillating Bray-Liebhafsky Reaction: Combined Experimental and Theoretical Study

Maksimović

Tošović

Pagnacco

2020

Bulletin of the Chemical Society of Japan

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“…the rate of their formation [20,21]. There are at least two methods for complex oscillatory system study: i) the investigation of their chemical subsystems [22][23][24][25][26] and ii) the investigation of oscillatory system behavior under different perturbants [21,[27][28][29][30]. The BR reaction is sensitive to many organic molecules (for example, antioxidants).…”

Section: Introductionmentioning

confidence: 99%

A possible connection between phosphate tungsten bronzes properties and Briggs-Rauscher oscillatory reaction response

Maksimović

Tančić³

et al. 2021

Sci Sintering

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The calcium phosphate tungsten bronze (Ca-PWB) has been synthesized and characterized (TGA, DSC, XRPD, FTIR, SEM). The influence of solid insoluble materials Ca- PWB, as well as lithium doped (Li-PWB) and cation free phosphate tungsten (PWB) bronzes on the oscillatory Briggs-Rauscher (BR) reaction dynamics, is compared. The results show that doping with Li and Ca reduces sensitivity of the BR reaction towards bronzes addition. These findings suggest the usage of the BR reaction as an innovative method for testing of different properties of bronze material. The behavior of PWB in the BR reaction is significantly changed with divalent cation (Ca2+) doping. The reasons for the different bronzes behavior were found in their calculated unit cell volumes. Namely, the compressed Ca-PWB unit cell volume indicates the difficult availability of the active site for heterogeneous catalysis. Hence, the linear correlation (slope) of the BR oscillogram?s length (?osc) vs. mass of bronze in BR reaction might be considered as a new parameter for the evaluation of the bronzes catalytic activity.

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“…The time evolution of the Bray–Liebhafsky oscillatory reaction has so far been successfully monitored by potentiometric methods. − The spectroscopic method for monitoring the BL oscillatory reaction was first applied by Degn et al in 1967 at a reaction volume of 10 mL . The BL has also been later (in 1976) spectroscopically followed in the works of Noyes and Sharma, but there is no data about total reaction volume.…”

Section: Introductionmentioning

confidence: 99%

Problem and Solution of UV–Vis Time-Based Measurements of a Chemical System Involving Gas Product: Application to the Bray–Liebhafsky Oscillatory Reaction

2021

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Ultraviolet (UV)−visible (Vis) spectroscopy is widely used in all modern laboratories as a routine method of analysis. The monitoring of chemical reactions in an aqueous solution involving a gas product is a demanding task but particularly for oscillatory reactions which are obtainable in a narrow concentration range. In this work, the optimization of experimental conditions for UV−Vis measurements of the Bray− Liebhafsky (BL) oscillatory reaction producing oxygen was done by using an internal standard. After applying the method of the internal standard on iodine absorbance at 460 nm, the characteristic BL oscillatory parameters (and iodine changes) are clearly evident. The obtained results allow students to apply their existing knowledge and, through a simple experimental setup, understand the importance of the internal standard, but at the same time, they show how they can solve the problem of UV−Vis noise during the time-based measurements of reactions involving gas products in general.

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Different influences of adrenaline on the Bray–Liebhafsky and Briggs–Rauscher iodate based oscillating reactions

Cited by 3 publications

References 20 publications

Insight into the Origin of Pyrocatechol Inhibition on Oscillating Bray-Liebhafsky Reaction: Combined Experimental and Theoretical Study

Insight into the Origin of Pyrocatechol Inhibition on Oscillating Bray-Liebhafsky Reaction: Combined Experimental and Theoretical Study

A possible connection between phosphate tungsten bronzes properties and Briggs-Rauscher oscillatory reaction response

Problem and Solution of UV–Vis Time-Based Measurements of a Chemical System Involving Gas Product: Application to the Bray–Liebhafsky Oscillatory Reaction

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