Blagojević, Slavica

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orcid::0000-0002-6085-138X
  • Blagojević, Slavica (9)
Projects

Author's Bibliography

Experimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reaction

Cervellati, Rinaldo; Greco, Emanuela; Blagojević, Slavica; Blagojević, Stevan; Anić, Slobodan; Čupić, Željko

(Springer Netherlands, 2018)

TY  - JOUR
AU  - Cervellati, Rinaldo
AU  - Greco, Emanuela
AU  - Blagojević, Slavica
AU  - Blagojević, Stevan
AU  - Anić, Slobodan
AU  - Čupić, Željko
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2462
AB  - The system KSCN-H2O2-CuSO4-NaOH, also known as the OrbA n-Epstein oscillatory reaction, is exposed to external perturbations by several phenolic compounds: catechol, resorcinol, hydroquinone, 2,5-dihydroxybenzoic acid, 2,6-dihydroxybenzoic acid, 2,3-dihydroxybenzoic acid, 2,4-dihydroxybenzoic acid, 3,4-dihydroxybenzoic acid, 3,5-dihydroxybenzoic acid, caffeic acid, and ferulic acid. As a result of the performed perturbation in most examined cases, oscillations have been inhibited for some characteristic time, and resumed afterwards. The evaluated inhibition time is typical for each substance and strongly dependent on its concentration. The chemical mechanism of the interaction between the OrbA n-Epstein system and phenolic compounds is briefly discussed. Numerical simulations are performed using the original OrbA n-Epstein model with 30 reactions, extended by three reactions describing the interaction with inhibitory substances. The rate constants of three added reactions are adjusted to fit experimental inhibition times, and compared among used compounds. The observed effects are discussed further in relation with the bond dissociation enthalpy theory. Unlike other tested compounds, 2,5-dihydroxybenzoic acid remains off from predicted order of activity.
PB  - Springer Netherlands
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Experimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reaction
VL  - 123
IS  - 1
SP  - 125
EP  - 139
DO  - 10.1007/s11144-017-1306-8
ER  - 
@article{
author = "Cervellati, Rinaldo and Greco, Emanuela and Blagojević, Slavica and Blagojević, Stevan and Anić, Slobodan and Čupić, Željko",
year = "2018",
abstract = "The system KSCN-H2O2-CuSO4-NaOH, also known as the OrbA n-Epstein oscillatory reaction, is exposed to external perturbations by several phenolic compounds: catechol, resorcinol, hydroquinone, 2,5-dihydroxybenzoic acid, 2,6-dihydroxybenzoic acid, 2,3-dihydroxybenzoic acid, 2,4-dihydroxybenzoic acid, 3,4-dihydroxybenzoic acid, 3,5-dihydroxybenzoic acid, caffeic acid, and ferulic acid. As a result of the performed perturbation in most examined cases, oscillations have been inhibited for some characteristic time, and resumed afterwards. The evaluated inhibition time is typical for each substance and strongly dependent on its concentration. The chemical mechanism of the interaction between the OrbA n-Epstein system and phenolic compounds is briefly discussed. Numerical simulations are performed using the original OrbA n-Epstein model with 30 reactions, extended by three reactions describing the interaction with inhibitory substances. The rate constants of three added reactions are adjusted to fit experimental inhibition times, and compared among used compounds. The observed effects are discussed further in relation with the bond dissociation enthalpy theory. Unlike other tested compounds, 2,5-dihydroxybenzoic acid remains off from predicted order of activity.",
publisher = "Springer Netherlands",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Experimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reaction",
volume = "123",
number = "1",
pages = "125-139",
doi = "10.1007/s11144-017-1306-8"
}
Cervellati, R., Greco, E., Blagojević, S., Blagojević, S., Anić, S.,& Čupić, Ž.. (2018). Experimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reaction. in Reaction Kinetics, Mechanisms and Catalysis
Springer Netherlands., 123(1), 125-139.
https://doi.org/10.1007/s11144-017-1306-8
Cervellati R, Greco E, Blagojević S, Blagojević S, Anić S, Čupić Ž. Experimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reaction. in Reaction Kinetics, Mechanisms and Catalysis. 2018;123(1):125-139.
doi:10.1007/s11144-017-1306-8 .
Cervellati, Rinaldo, Greco, Emanuela, Blagojević, Slavica, Blagojević, Stevan, Anić, Slobodan, Čupić, Željko, "Experimental and mechanistic study of the inhibitory effects by phenolics on the oscillations of the OrbA n-Epstein Reaction" in Reaction Kinetics, Mechanisms and Catalysis, 123, no. 1 (2018):125-139,
https://doi.org/10.1007/s11144-017-1306-8 . .
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5

Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model

Čupić, Željko; Ivanović-Šašić, Ana; Blagojević, Stevan; Blagojević, Slavica; Kolar-Anić, Ljiljana; Anić, Slobodan

(Springer Netherlands, 2016)

TY  - JOUR
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
AU  - Blagojević, Stevan
AU  - Blagojević, Slavica
AU  - Kolar-Anić, Ljiljana
AU  - Anić, Slobodan
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2013
AB  - By numerically simulated Bray-Liebhafsky (BL) reaction under a continuously fed well stirred tank reactor (CSTR) conditions, we discussed the attractors and Poincar, 1D maps with respect to flow rate as the control parameter. The new technique of the return maps from transient trajectories over the slow manifold is developed and applied in order to explore its multilayered structure related to dynamical states (periodic and aperiodic -chaotic oscillating modes) of the system. Kinetic relations underlying the slow manifold structure are briefly discussed.
PB  - Springer Netherlands
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model
VL  - 118
IS  - 1
SP  - 27
EP  - 38
DO  - 10.1007/s11144-016-0998-5
ER  - 
@article{
author = "Čupić, Željko and Ivanović-Šašić, Ana and Blagojević, Stevan and Blagojević, Slavica and Kolar-Anić, Ljiljana and Anić, Slobodan",
year = "2016",
abstract = "By numerically simulated Bray-Liebhafsky (BL) reaction under a continuously fed well stirred tank reactor (CSTR) conditions, we discussed the attractors and Poincar, 1D maps with respect to flow rate as the control parameter. The new technique of the return maps from transient trajectories over the slow manifold is developed and applied in order to explore its multilayered structure related to dynamical states (periodic and aperiodic -chaotic oscillating modes) of the system. Kinetic relations underlying the slow manifold structure are briefly discussed.",
publisher = "Springer Netherlands",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model",
volume = "118",
number = "1",
pages = "27-38",
doi = "10.1007/s11144-016-0998-5"
}
Čupić, Ž., Ivanović-Šašić, A., Blagojević, S., Blagojević, S., Kolar-Anić, L.,& Anić, S.. (2016). Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model. in Reaction Kinetics, Mechanisms and Catalysis
Springer Netherlands., 118(1), 27-38.
https://doi.org/10.1007/s11144-016-0998-5
Čupić Ž, Ivanović-Šašić A, Blagojević S, Blagojević S, Kolar-Anić L, Anić S. Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model. in Reaction Kinetics, Mechanisms and Catalysis. 2016;118(1):27-38.
doi:10.1007/s11144-016-0998-5 .
Čupić, Željko, Ivanović-Šašić, Ana, Blagojević, Stevan, Blagojević, Slavica, Kolar-Anić, Ljiljana, Anić, Slobodan, "Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model" in Reaction Kinetics, Mechanisms and Catalysis, 118, no. 1 (2016):27-38,
https://doi.org/10.1007/s11144-016-0998-5 . .
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3

Current rates and reaction rates in the Stoichiometric Network Analysis (SNA)

Macesic, Stevan R.; Čupić, Željko; Blagojević, Slavica; Pejić, Nataša; Anić, Slobodan; Kolar-Anić, Ljiljana

(De Gruyter, 2015)

TY  - JOUR
AU  - Macesic, Stevan R.
AU  - Čupić, Željko
AU  - Blagojević, Slavica
AU  - Pejić, Nataša
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1661
AB  - In stoichiometric network analysis (SNA) the instability condition is calculated by the current rates. Recently, we have shown that in the final result the current rates can be substituted by reaction rates, which is a more appropriate value for the examination of instability from experimental point of view. Here, we elaborate the problem of whether the current rates are necessary parameters in the calculation, with the aim of obtaining the region of instability. All calculations are performed on a model for Belousov-Zhabotinsky (BZ) reaction, which has not been examined by SNA.
PB  - De Gruyter
T2  - Open Chemistry
T1  - Current rates and reaction rates in the Stoichiometric Network Analysis (SNA)
VL  - 13
IS  - 1
SP  - 591
EP  - 599
DO  - 10.1515/chem-2015-0077
ER  - 
@article{
author = "Macesic, Stevan R. and Čupić, Željko and Blagojević, Slavica and Pejić, Nataša and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2015",
abstract = "In stoichiometric network analysis (SNA) the instability condition is calculated by the current rates. Recently, we have shown that in the final result the current rates can be substituted by reaction rates, which is a more appropriate value for the examination of instability from experimental point of view. Here, we elaborate the problem of whether the current rates are necessary parameters in the calculation, with the aim of obtaining the region of instability. All calculations are performed on a model for Belousov-Zhabotinsky (BZ) reaction, which has not been examined by SNA.",
publisher = "De Gruyter",
journal = "Open Chemistry",
title = "Current rates and reaction rates in the Stoichiometric Network Analysis (SNA)",
volume = "13",
number = "1",
pages = "591-599",
doi = "10.1515/chem-2015-0077"
}
Macesic, S. R., Čupić, Ž., Blagojević, S., Pejić, N., Anić, S.,& Kolar-Anić, L.. (2015). Current rates and reaction rates in the Stoichiometric Network Analysis (SNA). in Open Chemistry
De Gruyter., 13(1), 591-599.
https://doi.org/10.1515/chem-2015-0077
Macesic SR, Čupić Ž, Blagojević S, Pejić N, Anić S, Kolar-Anić L. Current rates and reaction rates in the Stoichiometric Network Analysis (SNA). in Open Chemistry. 2015;13(1):591-599.
doi:10.1515/chem-2015-0077 .
Macesic, Stevan R., Čupić, Željko, Blagojević, Slavica, Pejić, Nataša, Anić, Slobodan, Kolar-Anić, Ljiljana, "Current rates and reaction rates in the Stoichiometric Network Analysis (SNA)" in Open Chemistry, 13, no. 1 (2015):591-599,
https://doi.org/10.1515/chem-2015-0077 . .
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7

Perturbations of the Dushman Reaction with Piroxicam: Experimental and Model Calculations

Pejić, Nataša; Blagojević, Slavica; Sarap, Natasa B.; Maksimović, Jelena; Anić, Slobodan; Čupić, Željko; Kolar-Anić, Ljiljana

(Wiley-V C H Verlag Gmbh, Weinheim, 2014)

TY  - JOUR
AU  - Pejić, Nataša
AU  - Blagojević, Slavica
AU  - Sarap, Natasa B.
AU  - Maksimović, Jelena
AU  - Anić, Slobodan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1539
AB  - Perturbation of the BrayLiebhafsky non-oscillating subsystem (mixture of KIO3 and H2SO4), i.e., Dushman reaction (DR), by piroxicam (PX), was observed in an open reactor, i.e., in the continuously fed well-stirred tank reactor (CSTR). Monitoring the response of DR to perturbations by different concentrations of PX allows developing a simple procedure for quantitative determination of this analyte in both bulk drug and pharmaceutical preparation (injection). A tentative perturbation mechanism of PX action on the DR matrix, based on a kinetic scheme that was suggested by Agreda etal., is proposed. The PX reactivity in DR has been generally related to the reaction of PX with hypoiodous acid (HIO) present in the matrix.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Helvetica Chimica Acta
T1  - Perturbations of the Dushman Reaction with Piroxicam: Experimental and Model Calculations
VL  - 97
IS  - 1
SP  - 47
EP  - 55
DO  - 10.1002/hlca.201300109
ER  - 
@article{
author = "Pejić, Nataša and Blagojević, Slavica and Sarap, Natasa B. and Maksimović, Jelena and Anić, Slobodan and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2014",
abstract = "Perturbation of the BrayLiebhafsky non-oscillating subsystem (mixture of KIO3 and H2SO4), i.e., Dushman reaction (DR), by piroxicam (PX), was observed in an open reactor, i.e., in the continuously fed well-stirred tank reactor (CSTR). Monitoring the response of DR to perturbations by different concentrations of PX allows developing a simple procedure for quantitative determination of this analyte in both bulk drug and pharmaceutical preparation (injection). A tentative perturbation mechanism of PX action on the DR matrix, based on a kinetic scheme that was suggested by Agreda etal., is proposed. The PX reactivity in DR has been generally related to the reaction of PX with hypoiodous acid (HIO) present in the matrix.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Helvetica Chimica Acta",
title = "Perturbations of the Dushman Reaction with Piroxicam: Experimental and Model Calculations",
volume = "97",
number = "1",
pages = "47-55",
doi = "10.1002/hlca.201300109"
}
Pejić, N., Blagojević, S., Sarap, N. B., Maksimović, J., Anić, S., Čupić, Ž.,& Kolar-Anić, L.. (2014). Perturbations of the Dushman Reaction with Piroxicam: Experimental and Model Calculations. in Helvetica Chimica Acta
Wiley-V C H Verlag Gmbh, Weinheim., 97(1), 47-55.
https://doi.org/10.1002/hlca.201300109
Pejić N, Blagojević S, Sarap NB, Maksimović J, Anić S, Čupić Ž, Kolar-Anić L. Perturbations of the Dushman Reaction with Piroxicam: Experimental and Model Calculations. in Helvetica Chimica Acta. 2014;97(1):47-55.
doi:10.1002/hlca.201300109 .
Pejić, Nataša, Blagojević, Slavica, Sarap, Natasa B., Maksimović, Jelena, Anić, Slobodan, Čupić, Željko, Kolar-Anić, Ljiljana, "Perturbations of the Dushman Reaction with Piroxicam: Experimental and Model Calculations" in Helvetica Chimica Acta, 97, no. 1 (2014):47-55,
https://doi.org/10.1002/hlca.201300109 . .
2
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2

Numerical evidence of complex nonlinear phenomena of the Belousov-Zhabotinsky oscillatory reaction under batch conditions

Blagojević, Slavica; Anić, Slobodan; Čupić, Željko; Blagojević, Stevan; Kolar-Anić, Ljiljana

(Maik Nauka/Interperiodica/Springer, New York, 2013)

TY  - JOUR
AU  - Blagojević, Slavica
AU  - Anić, Slobodan
AU  - Čupić, Željko
AU  - Blagojević, Stevan
AU  - Kolar-Anić, Ljiljana
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1272
AB  - By numerical calculations based on our previously proposed model with Br2O intermediate species we were able to simulate complex evolution of the Belousov-Zhabotinsky (BZ) reaction under batch conditions. In the defined region of initial malonic acid concentration [MA](0) (1.00 x 10(-3) mol dm(3) a parts per thousand currency sign [MA](0) a parts per thousand currency sign 1.50 mol dm(-3)) different sequences of regular and complex periodic and aperiodic oscillations were obtained. It is noticed that the bromine evaporation significantly affects the dynamics of the reaction.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Numerical evidence of complex nonlinear phenomena of the Belousov-Zhabotinsky oscillatory reaction under batch conditions
VL  - 87
IS  - 13
SP  - 2140
EP  - 2145
DO  - 10.1134/S0036024413130074
ER  - 
@article{
author = "Blagojević, Slavica and Anić, Slobodan and Čupić, Željko and Blagojević, Stevan and Kolar-Anić, Ljiljana",
year = "2013",
abstract = "By numerical calculations based on our previously proposed model with Br2O intermediate species we were able to simulate complex evolution of the Belousov-Zhabotinsky (BZ) reaction under batch conditions. In the defined region of initial malonic acid concentration [MA](0) (1.00 x 10(-3) mol dm(3) a parts per thousand currency sign [MA](0) a parts per thousand currency sign 1.50 mol dm(-3)) different sequences of regular and complex periodic and aperiodic oscillations were obtained. It is noticed that the bromine evaporation significantly affects the dynamics of the reaction.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Numerical evidence of complex nonlinear phenomena of the Belousov-Zhabotinsky oscillatory reaction under batch conditions",
volume = "87",
number = "13",
pages = "2140-2145",
doi = "10.1134/S0036024413130074"
}
Blagojević, S., Anić, S., Čupić, Ž., Blagojević, S.,& Kolar-Anić, L.. (2013). Numerical evidence of complex nonlinear phenomena of the Belousov-Zhabotinsky oscillatory reaction under batch conditions. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 87(13), 2140-2145.
https://doi.org/10.1134/S0036024413130074
Blagojević S, Anić S, Čupić Ž, Blagojević S, Kolar-Anić L. Numerical evidence of complex nonlinear phenomena of the Belousov-Zhabotinsky oscillatory reaction under batch conditions. in Russian Journal of Physical Chemistry A. 2013;87(13):2140-2145.
doi:10.1134/S0036024413130074 .
Blagojević, Slavica, Anić, Slobodan, Čupić, Željko, Blagojević, Stevan, Kolar-Anić, Ljiljana, "Numerical evidence of complex nonlinear phenomena of the Belousov-Zhabotinsky oscillatory reaction under batch conditions" in Russian Journal of Physical Chemistry A, 87, no. 13 (2013):2140-2145,
https://doi.org/10.1134/S0036024413130074 . .
3
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4

Kinetic Analytical Method for Determination of Uric Acid in Human Urine using Analyte Pulse Perturbation Technique

Pejić, Nataša; Maksimović, Jelena; Blagojević, Slavica; Anić, Slobodan; Čupić, Željko; Kolar-Anić, Ljiljana

(Sociedade Brasileira de Química, 2012)

TY  - JOUR
AU  - Pejić, Nataša
AU  - Maksimović, Jelena
AU  - Blagojević, Slavica
AU  - Anić, Slobodan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1130
AB  - Simple and reliable novel methods for the determination of uric acid (UA) are proposed and validated. For quantitative determination of UA, two matrices were used: the Bray-Liebhafsky (BL) oscillatory reaction in a stable non-equilibrium stationary state close to the bifurcation point (method A) as well as, the BL non-oscillating subsystem (mixture KIO3 and H2SO4), i.e., Dushman reaction (DR) in a steady state (method B). The proposed methods are optimized in a continuously fed well stirred tank reactor (CSTR) and applied with excellent results in the determination of UA in human urine samples. The linear relationship between maximal potential shift Delta E-m, and both the logarithm of the UA concentration (procedure A) and UA concentration (procedure B) is obtained in the concentration range 2.98 x 10(-5)-2.68 x 10(-4) mol L-1 and 2.98 x 10(-5)-3.58 x 10(-4) mol L-1, respectively. The methods have an excellent sample throughput of 30 samples h(-1) (method A) and 7 samples h(-1) (method B) with the sensitivity determined to be 1.1 x 10(-5) mol L-1 (method A) and 8.9 x 10(-6) mol L-1 (method B) as well as the precision RSD  LT = 3.4% for both methods. Some aspects of the possible mechanism of UA action on the BL oscillating and Duschman non-oscillating reaction systems are discussed in detail.
PB  - Sociedade Brasileira de Química
T2  - Journal of the Brazilian Chemical Society
T1  - Kinetic Analytical Method for Determination of Uric Acid in Human Urine using Analyte Pulse Perturbation Technique
VL  - 23
IS  - 8
SP  - 1450
EP  - 1459
UR  - https://hdl.handle.net/21.15107/rcub_cer_1130
ER  - 
@article{
author = "Pejić, Nataša and Maksimović, Jelena and Blagojević, Slavica and Anić, Slobodan and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2012",
abstract = "Simple and reliable novel methods for the determination of uric acid (UA) are proposed and validated. For quantitative determination of UA, two matrices were used: the Bray-Liebhafsky (BL) oscillatory reaction in a stable non-equilibrium stationary state close to the bifurcation point (method A) as well as, the BL non-oscillating subsystem (mixture KIO3 and H2SO4), i.e., Dushman reaction (DR) in a steady state (method B). The proposed methods are optimized in a continuously fed well stirred tank reactor (CSTR) and applied with excellent results in the determination of UA in human urine samples. The linear relationship between maximal potential shift Delta E-m, and both the logarithm of the UA concentration (procedure A) and UA concentration (procedure B) is obtained in the concentration range 2.98 x 10(-5)-2.68 x 10(-4) mol L-1 and 2.98 x 10(-5)-3.58 x 10(-4) mol L-1, respectively. The methods have an excellent sample throughput of 30 samples h(-1) (method A) and 7 samples h(-1) (method B) with the sensitivity determined to be 1.1 x 10(-5) mol L-1 (method A) and 8.9 x 10(-6) mol L-1 (method B) as well as the precision RSD  LT = 3.4% for both methods. Some aspects of the possible mechanism of UA action on the BL oscillating and Duschman non-oscillating reaction systems are discussed in detail.",
publisher = "Sociedade Brasileira de Química",
journal = "Journal of the Brazilian Chemical Society",
title = "Kinetic Analytical Method for Determination of Uric Acid in Human Urine using Analyte Pulse Perturbation Technique",
volume = "23",
number = "8",
pages = "1450-1459",
url = "https://hdl.handle.net/21.15107/rcub_cer_1130"
}
Pejić, N., Maksimović, J., Blagojević, S., Anić, S., Čupić, Ž.,& Kolar-Anić, L.. (2012). Kinetic Analytical Method for Determination of Uric Acid in Human Urine using Analyte Pulse Perturbation Technique. in Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química., 23(8), 1450-1459.
https://hdl.handle.net/21.15107/rcub_cer_1130
Pejić N, Maksimović J, Blagojević S, Anić S, Čupić Ž, Kolar-Anić L. Kinetic Analytical Method for Determination of Uric Acid in Human Urine using Analyte Pulse Perturbation Technique. in Journal of the Brazilian Chemical Society. 2012;23(8):1450-1459.
https://hdl.handle.net/21.15107/rcub_cer_1130 .
Pejić, Nataša, Maksimović, Jelena, Blagojević, Slavica, Anić, Slobodan, Čupić, Željko, Kolar-Anić, Ljiljana, "Kinetic Analytical Method for Determination of Uric Acid in Human Urine using Analyte Pulse Perturbation Technique" in Journal of the Brazilian Chemical Society, 23, no. 8 (2012):1450-1459,
https://hdl.handle.net/21.15107/rcub_cer_1130 .
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9

Influence of most important radicals on the numerically simulated belousov-zhabotinsky oscillatory reaction under batch conditions

Blagojević, Slavica; Anić, Slobodan; Čupić, Željko

(Maik Nauka/Interperiodica/Springer, New York, 2011)

TY  - JOUR
AU  - Blagojević, Slavica
AU  - Anić, Slobodan
AU  - Čupić, Željko
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/819
AB  - In the already proposed model of the Belousov-Zhabotinsky reaction with the Br(2)O species as intermediate one, the reactions with malonyl (MA(center dot)), bromomalonyl (BrMA(center dot)) and tartronyl (TA(center dot)) radicals were introduced with aim to explore their role in overall dynamics. The related numerical simulations of the experimentally obtained dynamic states under batch conditions were successfully performed.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Influence of most important radicals on the numerically simulated belousov-zhabotinsky oscillatory reaction under batch conditions
VL  - 85
IS  - 13
SP  - 2274
EP  - 2278
DO  - 10.1134/S003602441113005X
ER  - 
@article{
author = "Blagojević, Slavica and Anić, Slobodan and Čupić, Željko",
year = "2011",
abstract = "In the already proposed model of the Belousov-Zhabotinsky reaction with the Br(2)O species as intermediate one, the reactions with malonyl (MA(center dot)), bromomalonyl (BrMA(center dot)) and tartronyl (TA(center dot)) radicals were introduced with aim to explore their role in overall dynamics. The related numerical simulations of the experimentally obtained dynamic states under batch conditions were successfully performed.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Influence of most important radicals on the numerically simulated belousov-zhabotinsky oscillatory reaction under batch conditions",
volume = "85",
number = "13",
pages = "2274-2278",
doi = "10.1134/S003602441113005X"
}
Blagojević, S., Anić, S.,& Čupić, Ž.. (2011). Influence of most important radicals on the numerically simulated belousov-zhabotinsky oscillatory reaction under batch conditions. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 85(13), 2274-2278.
https://doi.org/10.1134/S003602441113005X
Blagojević S, Anić S, Čupić Ž. Influence of most important radicals on the numerically simulated belousov-zhabotinsky oscillatory reaction under batch conditions. in Russian Journal of Physical Chemistry A. 2011;85(13):2274-2278.
doi:10.1134/S003602441113005X .
Blagojević, Slavica, Anić, Slobodan, Čupić, Željko, "Influence of most important radicals on the numerically simulated belousov-zhabotinsky oscillatory reaction under batch conditions" in Russian Journal of Physical Chemistry A, 85, no. 13 (2011):2274-2278,
https://doi.org/10.1134/S003602441113005X . .
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5

Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction

Blagojević, Slavica; Anić, Slobodan; Čupić, Željko; Pejić, Nataša; Kolar-Anić, Ljiljana

(Maik Nauka/Interperiodica/Springer, New York, 2009)

TY  - JOUR
AU  - Blagojević, Slavica
AU  - Anić, Slobodan
AU  - Čupić, Željko
AU  - Pejić, Nataša
AU  - Kolar-Anić, Ljiljana
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/537
AB  - The kinetic investigations of the malonic acid decomposition (8.00 x 10(-3) mol dm(-3) a parts per thousand currency sign [CH(2)(COOH)(2)](0) a parts per thousand currency sign 4.30 x 10(-2) mol dm(-3)) in the Belousov-Zhabotinsky (BZ) system in the presence of bromate, bromide, sulfuric acid and cerium sulfate, were performed in the isothermal closed well stirred reactor at different temperatures (25.0A degrees C a parts per thousand currency sign T a parts per thousand currency sign 45.0A degrees C). The formal kinetics of the overall BZ reaction, and particularly kinetics in characteristic periods of BZ reaction, based on the analyses of the bromide oscillograms, was accomplished. The evolution as well as the rate constants and the apparent activation energies of the reactions, which exist in the preoscillatory and oscillatory periods, are also successfully calculated by numerical simulations. Simulations are based on the model including the Br(2)O species.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction
VL  - 83
IS  - 9
SP  - 1496
EP  - 1501
DO  - 10.1134/S0036024409090143
ER  - 
@article{
author = "Blagojević, Slavica and Anić, Slobodan and Čupić, Željko and Pejić, Nataša and Kolar-Anić, Ljiljana",
year = "2009",
abstract = "The kinetic investigations of the malonic acid decomposition (8.00 x 10(-3) mol dm(-3) a parts per thousand currency sign [CH(2)(COOH)(2)](0) a parts per thousand currency sign 4.30 x 10(-2) mol dm(-3)) in the Belousov-Zhabotinsky (BZ) system in the presence of bromate, bromide, sulfuric acid and cerium sulfate, were performed in the isothermal closed well stirred reactor at different temperatures (25.0A degrees C a parts per thousand currency sign T a parts per thousand currency sign 45.0A degrees C). The formal kinetics of the overall BZ reaction, and particularly kinetics in characteristic periods of BZ reaction, based on the analyses of the bromide oscillograms, was accomplished. The evolution as well as the rate constants and the apparent activation energies of the reactions, which exist in the preoscillatory and oscillatory periods, are also successfully calculated by numerical simulations. Simulations are based on the model including the Br(2)O species.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction",
volume = "83",
number = "9",
pages = "1496-1501",
doi = "10.1134/S0036024409090143"
}
Blagojević, S., Anić, S., Čupić, Ž., Pejić, N.,& Kolar-Anić, L.. (2009). Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 83(9), 1496-1501.
https://doi.org/10.1134/S0036024409090143
Blagojević S, Anić S, Čupić Ž, Pejić N, Kolar-Anić L. Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction. in Russian Journal of Physical Chemistry A. 2009;83(9):1496-1501.
doi:10.1134/S0036024409090143 .
Blagojević, Slavica, Anić, Slobodan, Čupić, Željko, Pejić, Nataša, Kolar-Anić, Ljiljana, "Temperature influence on the malonic acid decomposition in the Belousov-Zhabotinsky reaction" in Russian Journal of Physical Chemistry A, 83, no. 9 (2009):1496-1501,
https://doi.org/10.1134/S0036024409090143 . .
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6

Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions

Blagojević, Slavica; Anić, Slobodan; Čupić, Željko; Pejić, Nataša; Kolar-Anić, Ljiljana

(Royal Soc Chemistry, Cambridge, 2008)

TY  - JOUR
AU  - Blagojević, Slavica
AU  - Anić, Slobodan
AU  - Čupić, Željko
AU  - Pejić, Nataša
AU  - Kolar-Anić, Ljiljana
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/396
AB  - The influence of the initial malonic acid concentration [MA](0) (8.00 x 10(-3)  LT = [MA](0)  LT = 4.30 x 10(-2) mol dm(-3)) in the presence of bromate (6.20 x 10(-2) mol dm(-3)), bromide (1.50 x 10(-5) mol dm(-3)), sulfuric acid (1.00 mol dm(-3)) and cerium sulfate (2.50 x 10(-3) mol dm(-3)) on the dynamics and the kinetics of the Belousov-Zhabotinsky (BZ) reactions was examined under batch conditions at 30.0 degrees C. The kinetics of the BZ reaction was analyzed by the earlier proposed method convenient for the examinations of the oscillatory reactions. In the defined region of parameters where oscillograms with only large-amplitude relaxation oscillations appeared, the pseudo-first order of the overall malonic acid decomposition with a corresponding rate constant of 2.14 x 10(-2) min(-1) was established. The numerical results on the dynamics and kinetics of the BZ reaction, carried out by the known skeleton model including the Br2O species, were in good agreement with the experimental ones. The already found saddle node infinite period (SNIPER) bifurcation point in transition from a stable quasi-steady state to periodic orbits and vice versa is confirmed by both experimental and numerical investigations of the system under consideration. Namely, the large-amplitude relaxation oscillations with increasing periods between oscillations in approaching the bifurcation points at the beginning and the end of the oscillatory domain, together with excitability of the stable quasi-steady states in their vicinity are obtained.
PB  - Royal Soc Chemistry, Cambridge
T2  - Physical Chemistry Chemical Physics
T1  - Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions
VL  - 10
IS  - 44
SP  - 6658
EP  - 6664
DO  - 10.1039/b804919j
ER  - 
@article{
author = "Blagojević, Slavica and Anić, Slobodan and Čupić, Željko and Pejić, Nataša and Kolar-Anić, Ljiljana",
year = "2008",
abstract = "The influence of the initial malonic acid concentration [MA](0) (8.00 x 10(-3)  LT = [MA](0)  LT = 4.30 x 10(-2) mol dm(-3)) in the presence of bromate (6.20 x 10(-2) mol dm(-3)), bromide (1.50 x 10(-5) mol dm(-3)), sulfuric acid (1.00 mol dm(-3)) and cerium sulfate (2.50 x 10(-3) mol dm(-3)) on the dynamics and the kinetics of the Belousov-Zhabotinsky (BZ) reactions was examined under batch conditions at 30.0 degrees C. The kinetics of the BZ reaction was analyzed by the earlier proposed method convenient for the examinations of the oscillatory reactions. In the defined region of parameters where oscillograms with only large-amplitude relaxation oscillations appeared, the pseudo-first order of the overall malonic acid decomposition with a corresponding rate constant of 2.14 x 10(-2) min(-1) was established. The numerical results on the dynamics and kinetics of the BZ reaction, carried out by the known skeleton model including the Br2O species, were in good agreement with the experimental ones. The already found saddle node infinite period (SNIPER) bifurcation point in transition from a stable quasi-steady state to periodic orbits and vice versa is confirmed by both experimental and numerical investigations of the system under consideration. Namely, the large-amplitude relaxation oscillations with increasing periods between oscillations in approaching the bifurcation points at the beginning and the end of the oscillatory domain, together with excitability of the stable quasi-steady states in their vicinity are obtained.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Physical Chemistry Chemical Physics",
title = "Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions",
volume = "10",
number = "44",
pages = "6658-6664",
doi = "10.1039/b804919j"
}
Blagojević, S., Anić, S., Čupić, Ž., Pejić, N.,& Kolar-Anić, L.. (2008). Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions. in Physical Chemistry Chemical Physics
Royal Soc Chemistry, Cambridge., 10(44), 6658-6664.
https://doi.org/10.1039/b804919j
Blagojević S, Anić S, Čupić Ž, Pejić N, Kolar-Anić L. Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions. in Physical Chemistry Chemical Physics. 2008;10(44):6658-6664.
doi:10.1039/b804919j .
Blagojević, Slavica, Anić, Slobodan, Čupić, Željko, Pejić, Nataša, Kolar-Anić, Ljiljana, "Malonic acid concentration as a control parameter in the kinetic analysis of the Belousov-Zhabotinsky reaction under batch conditions" in Physical Chemistry Chemical Physics, 10, no. 44 (2008):6658-6664,
https://doi.org/10.1039/b804919j . .
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