TY  - JOUR
AU  - Potkonjak, Nebojsa I.
AU  - Potkonjak, Tanja. N.
AU  - Blagojević, Stevan
AU  - Dudic, Boris
AU  - Randjelović, Danijela
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/660
AB  - A phenomenon of current oscillators was characterized crosswise active-passive potential region during the electrodissolution of copper electrode in trifluoroacetic acid (TFA). The current density-potential curves show two transition points. A potential region of current oscillations was found as a part of limiting current region. The Cu vertical bar TFA electrochemical oscillator was found to displaying rich dynamical response on varying the temperature and the applied potential. The Cu vertical bar TFA system display current oscillation behaviour from the mono-periodic to the mixed-mode (relaxation type). Changes of the electrode surface structure and morphology were investigated by X-ray diffraction spectroscopy, atomic forced microscopy and optical microscopy.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Corrosion Science
T1  - Current oscillations during the anodic dissolution of copper in trifluoroacetic acid
VL  - 52
IS  - 5
SP  - 1618
EP  - 1624
DO  - 10.1016/j.corsci.2010.02.021
ER  - 

@article{
author = "Potkonjak, Nebojsa I. and Potkonjak, Tanja. N. and Blagojević, Stevan and Dudic, Boris and Randjelović, Danijela",
year = "2010",
abstract = "A phenomenon of current oscillators was characterized crosswise active-passive potential region during the electrodissolution of copper electrode in trifluoroacetic acid (TFA). The current density-potential curves show two transition points. A potential region of current oscillations was found as a part of limiting current region. The Cu vertical bar TFA electrochemical oscillator was found to displaying rich dynamical response on varying the temperature and the applied potential. The Cu vertical bar TFA system display current oscillation behaviour from the mono-periodic to the mixed-mode (relaxation type). Changes of the electrode surface structure and morphology were investigated by X-ray diffraction spectroscopy, atomic forced microscopy and optical microscopy.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Corrosion Science",
title = "Current oscillations during the anodic dissolution of copper in trifluoroacetic acid",
volume = "52",
number = "5",
pages = "1618-1624",
doi = "10.1016/j.corsci.2010.02.021"
}

Potkonjak, N. I., Potkonjak, Tanja. N., Blagojević, S., Dudic, B.,& Randjelović, D.. (2010). Current oscillations during the anodic dissolution of copper in trifluoroacetic acid. in Corrosion Science
Oxford : Pergamon-Elsevier Science Ltd., 52(5), 1618-1624.
https://doi.org/10.1016/j.corsci.2010.02.021

Potkonjak NI, Potkonjak TN, Blagojević S, Dudic B, Randjelović D. Current oscillations during the anodic dissolution of copper in trifluoroacetic acid. in Corrosion Science. 2010;52(5):1618-1624.
doi:10.1016/j.corsci.2010.02.021 .

Potkonjak, Nebojsa I., Potkonjak, Tanja. N., Blagojević, Stevan, Dudic, Boris, Randjelović, Danijela, "Current oscillations during the anodic dissolution of copper in trifluoroacetic acid" in Corrosion Science, 52, no. 5 (2010):1618-1624,
https://doi.org/10.1016/j.corsci.2010.02.021 . .

TY  - JOUR
AU  - Gorjanović, Stanislava Ž.
AU  - Novaković, Miroslav
AU  - Potkonjak, Nebojsa I.
AU  - Leskosek-Cukalovic, Ida
AU  - Suznjevic, Desanka Z.
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/748
AB  - A novel antioxidative assay based on direct current polarography has been developed. Quantification of antioxidative (AO) activity has been based on a decrease of hydrogen peroxide anodic current in the presence of antioxidants. An efficient experimental procedure, without any special pretreatment of analyzed samples, has been applied. Antioxidative activity of different kinds of commercial beers (dark, blond, and alcohol-free), some small-scale made special beers with medicinal herbs and Mushroom extracts, extracts themselves, as well as individual phenolic components present in beer has been measured. In addition, changes of AO activity during the full-scale industrial process of beer production have been monitored. A strong correlation between results obtained and total phenolics content has been observed. The assay can be recommended for application in brewing industry, either to survey 1 process with the aim to optimize relevant technological factors or to analyze quality of final product.
PB  - American Chemical Society (ACS)
T2  - Journal of Agricultural and Food Chemistry
T1  - Application of a Novel Antioxidative Assay in Beer Analysis and Brewing Process Monitoring
VL  - 58
IS  - 2
SP  - 744
EP  - 751
DO  - 10.1021/jf903091n
ER  - 

@article{
author = "Gorjanović, Stanislava Ž. and Novaković, Miroslav and Potkonjak, Nebojsa I. and Leskosek-Cukalovic, Ida and Suznjevic, Desanka Z.",
year = "2010",
abstract = "A novel antioxidative assay based on direct current polarography has been developed. Quantification of antioxidative (AO) activity has been based on a decrease of hydrogen peroxide anodic current in the presence of antioxidants. An efficient experimental procedure, without any special pretreatment of analyzed samples, has been applied. Antioxidative activity of different kinds of commercial beers (dark, blond, and alcohol-free), some small-scale made special beers with medicinal herbs and Mushroom extracts, extracts themselves, as well as individual phenolic components present in beer has been measured. In addition, changes of AO activity during the full-scale industrial process of beer production have been monitored. A strong correlation between results obtained and total phenolics content has been observed. The assay can be recommended for application in brewing industry, either to survey 1 process with the aim to optimize relevant technological factors or to analyze quality of final product.",
publisher = "American Chemical Society (ACS)",
journal = "Journal of Agricultural and Food Chemistry",
title = "Application of a Novel Antioxidative Assay in Beer Analysis and Brewing Process Monitoring",
volume = "58",
number = "2",
pages = "744-751",
doi = "10.1021/jf903091n"
}

Gorjanović, S. Ž., Novaković, M., Potkonjak, N. I., Leskosek-Cukalovic, I.,& Suznjevic, D. Z.. (2010). Application of a Novel Antioxidative Assay in Beer Analysis and Brewing Process Monitoring. in Journal of Agricultural and Food Chemistry
American Chemical Society (ACS)., 58(2), 744-751.
https://doi.org/10.1021/jf903091n

Gorjanović SŽ, Novaković M, Potkonjak NI, Leskosek-Cukalovic I, Suznjevic DZ. Application of a Novel Antioxidative Assay in Beer Analysis and Brewing Process Monitoring. in Journal of Agricultural and Food Chemistry. 2010;58(2):744-751.
doi:10.1021/jf903091n .

Gorjanović, Stanislava Ž., Novaković, Miroslav, Potkonjak, Nebojsa I., Leskosek-Cukalovic, Ida, Suznjevic, Desanka Z., "Application of a Novel Antioxidative Assay in Beer Analysis and Brewing Process Monitoring" in Journal of Agricultural and Food Chemistry, 58, no. 2 (2010):744-751,
https://doi.org/10.1021/jf903091n . .

TY  - JOUR
AU  - Gorjanović, Stanislava Ž.
AU  - Novaković, Miroslav
AU  - Potkonjak, Nebojsa I.
AU  - Suznjevic, Desanka Z.
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/645
AB  - Antioxidant (AO) activity of various red and white wines of different origin as well as some individual phenolic compounds present in wine has been assessed using a polarographic assay. Direct current polarography has been used to survey hydrogen peroxide scavenge (HPS) upon gradual addition of tested samples. Results expressed as reciprocal value of wine volume required for 50% decrease of anodic limiting current of hydrogen peroxide have been validated through correlation with Folin Ciocalteau and DPPH assays. All wines exhibit HPS activity analogous with total phenolic content and DPPH scavenge. Reliability and accuracy, low cost, and rapid and direct experimental procedure open a wide area for application of this assay, making it a good alternative to standard, widely accepted AO assays.
PB  - American Chemical Society (ACS)
T2  - Journal of Agricultural and Food Chemistry
T1  - Antioxidant Activity of Wines Determined by a Polarographic Assay Based on Hydrogen Peroxide Scavenge
VL  - 58
IS  - 8
SP  - 4626
EP  - 4631
DO  - 10.1021/jf100022e
ER  - 

@article{
author = "Gorjanović, Stanislava Ž. and Novaković, Miroslav and Potkonjak, Nebojsa I. and Suznjevic, Desanka Z.",
year = "2010",
abstract = "Antioxidant (AO) activity of various red and white wines of different origin as well as some individual phenolic compounds present in wine has been assessed using a polarographic assay. Direct current polarography has been used to survey hydrogen peroxide scavenge (HPS) upon gradual addition of tested samples. Results expressed as reciprocal value of wine volume required for 50% decrease of anodic limiting current of hydrogen peroxide have been validated through correlation with Folin Ciocalteau and DPPH assays. All wines exhibit HPS activity analogous with total phenolic content and DPPH scavenge. Reliability and accuracy, low cost, and rapid and direct experimental procedure open a wide area for application of this assay, making it a good alternative to standard, widely accepted AO assays.",
publisher = "American Chemical Society (ACS)",
journal = "Journal of Agricultural and Food Chemistry",
title = "Antioxidant Activity of Wines Determined by a Polarographic Assay Based on Hydrogen Peroxide Scavenge",
volume = "58",
number = "8",
pages = "4626-4631",
doi = "10.1021/jf100022e"
}

Gorjanović, S. Ž., Novaković, M., Potkonjak, N. I.,& Suznjevic, D. Z.. (2010). Antioxidant Activity of Wines Determined by a Polarographic Assay Based on Hydrogen Peroxide Scavenge. in Journal of Agricultural and Food Chemistry
American Chemical Society (ACS)., 58(8), 4626-4631.
https://doi.org/10.1021/jf100022e

Gorjanović SŽ, Novaković M, Potkonjak NI, Suznjevic DZ. Antioxidant Activity of Wines Determined by a Polarographic Assay Based on Hydrogen Peroxide Scavenge. in Journal of Agricultural and Food Chemistry. 2010;58(8):4626-4631.
doi:10.1021/jf100022e .

Gorjanović, Stanislava Ž., Novaković, Miroslav, Potkonjak, Nebojsa I., Suznjevic, Desanka Z., "Antioxidant Activity of Wines Determined by a Polarographic Assay Based on Hydrogen Peroxide Scavenge" in Journal of Agricultural and Food Chemistry, 58, no. 8 (2010):4626-4631,
https://doi.org/10.1021/jf100022e . .