TY  - JOUR
AU  - Matijašević, Igor
AU  - Kulizić, Mihajlo N.
AU  - Bacetić, Ljubica
AU  - Gavrilović, Damjan
AU  - Baošić, Rada
AU  - Lolić, Aleksandar
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6268
AB  - A simple modification of bare glassy carbon electrode by electropolymerization of glycine by cyclic voltammetry was applied to the detection of ibuprofen. The polyglycine modified glassy carbon electrode was characterized by cyclic voltammetry and the electroactive surface area was determined. The study of ibuprofen in acetic acid buffer (0.25 M, pH 4.0) presented an electrocatalytic effect toward ibuprofen oxidation, increasing the current response and decrease of oxidation potential, at the modified electrode compared to the bare. Under the optimal conditions, the modified electrode gave a linear response in the ibuprofen concentration range of 10 to 200 μM, obtained correlation coefficient was 0.9993. the calculated limit of detection (3Sb/m) was 1.0 μM and the limit of quantification (10Sb/m) was 3.5 μM. the sensor was successfully used for the determination of ibuprofen in pharmaceutical preparations with satisfactory recoveries, 93–107 %. The new sensor showed good selectivity, repeatability, and reproducibility with satisfactory stability.
PB  - John Wiley and Sons Inc
T2  - ChemistrySelect
T1  - Polyglycine Modified Glassy Carbon Electrode for Ibuprofen Determination
VL  - 8
IS  - 24
SP  - e202300827
DO  - 10.1002/slct.202300827
ER  - 

@article{
author = "Matijašević, Igor and Kulizić, Mihajlo N. and Bacetić, Ljubica and Gavrilović, Damjan and Baošić, Rada and Lolić, Aleksandar",
year = "2023",
abstract = "A simple modification of bare glassy carbon electrode by electropolymerization of glycine by cyclic voltammetry was applied to the detection of ibuprofen. The polyglycine modified glassy carbon electrode was characterized by cyclic voltammetry and the electroactive surface area was determined. The study of ibuprofen in acetic acid buffer (0.25 M, pH 4.0) presented an electrocatalytic effect toward ibuprofen oxidation, increasing the current response and decrease of oxidation potential, at the modified electrode compared to the bare. Under the optimal conditions, the modified electrode gave a linear response in the ibuprofen concentration range of 10 to 200 μM, obtained correlation coefficient was 0.9993. the calculated limit of detection (3Sb/m) was 1.0 μM and the limit of quantification (10Sb/m) was 3.5 μM. the sensor was successfully used for the determination of ibuprofen in pharmaceutical preparations with satisfactory recoveries, 93–107 %. The new sensor showed good selectivity, repeatability, and reproducibility with satisfactory stability.",
publisher = "John Wiley and Sons Inc",
journal = "ChemistrySelect",
title = "Polyglycine Modified Glassy Carbon Electrode for Ibuprofen Determination",
volume = "8",
number = "24",
pages = "e202300827",
doi = "10.1002/slct.202300827"
}

Matijašević, I., Kulizić, M. N., Bacetić, L., Gavrilović, D., Baošić, R.,& Lolić, A.. (2023). Polyglycine Modified Glassy Carbon Electrode for Ibuprofen Determination. in ChemistrySelect
John Wiley and Sons Inc., 8(24), e202300827.
https://doi.org/10.1002/slct.202300827

Matijašević I, Kulizić MN, Bacetić L, Gavrilović D, Baošić R, Lolić A. Polyglycine Modified Glassy Carbon Electrode for Ibuprofen Determination. in ChemistrySelect. 2023;8(24):e202300827.
doi:10.1002/slct.202300827 .

Matijašević, Igor, Kulizić, Mihajlo N., Bacetić, Ljubica, Gavrilović, Damjan, Baošić, Rada, Lolić, Aleksandar, "Polyglycine Modified Glassy Carbon Electrode for Ibuprofen Determination" in ChemistrySelect, 8, no. 24 (2023):e202300827,
https://doi.org/10.1002/slct.202300827 . .

TY  - JOUR
AU  - Matijašević, Igor
AU  - Korolija, Jasminka N.
AU  - Mandić, Ljuba M.
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2339
AB  - This paper describes the results achieved by high school seniors on an item which involves translation of the equation P = kT into a corresponding pictorial external representation. The majority of students (the classes of 2011, 2012 and 2013) did not give the correct answer to the multiple choice part of the translation item. They chose pictorial representations of the other gas laws (P = k/V, or V = kT) instead. Failure to choose the correct answer was surprising considering that the symbol for volume was absent which should have been the key clue. Through the analysis of students' explanations (the classes of 2011 and 2012) and interviews (the class of 2013) we considered the reasoning applied by students who chose the correct answer or distractors for the multiple choice part of the item. Among the students who answered correctly there were explanations which contained misconceptions. Several factors that lead to the unsuccessful translation between external representations have been discovered. Students interpreted the change in one quantity based on the notation for the change in another one because of deep rooted cognitive schemas about changing two quantities (volume and pressure, pressure and temperature, temperature and volume), without consideration that for such changes to be valid for gases all three quantities need to be considered for a certain amount of substance. Those cognitive schemas interfered with mathematical reasoning, i.e. students possessed limited understanding of the equations.
PB  - Royal Soc Chemistry, Cambridge
T2  - Chemistry Education: Research and Practice
T1  - Translation of P = kT into a pictorial external representation by high school seniors
VL  - 17
IS  - 4
SP  - 656
EP  - 674
DO  - 10.1039/c6rp00030d
ER  - 

@article{
author = "Matijašević, Igor and Korolija, Jasminka N. and Mandić, Ljuba M.",
year = "2016",
abstract = "This paper describes the results achieved by high school seniors on an item which involves translation of the equation P = kT into a corresponding pictorial external representation. The majority of students (the classes of 2011, 2012 and 2013) did not give the correct answer to the multiple choice part of the translation item. They chose pictorial representations of the other gas laws (P = k/V, or V = kT) instead. Failure to choose the correct answer was surprising considering that the symbol for volume was absent which should have been the key clue. Through the analysis of students' explanations (the classes of 2011 and 2012) and interviews (the class of 2013) we considered the reasoning applied by students who chose the correct answer or distractors for the multiple choice part of the item. Among the students who answered correctly there were explanations which contained misconceptions. Several factors that lead to the unsuccessful translation between external representations have been discovered. Students interpreted the change in one quantity based on the notation for the change in another one because of deep rooted cognitive schemas about changing two quantities (volume and pressure, pressure and temperature, temperature and volume), without consideration that for such changes to be valid for gases all three quantities need to be considered for a certain amount of substance. Those cognitive schemas interfered with mathematical reasoning, i.e. students possessed limited understanding of the equations.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Chemistry Education: Research and Practice",
title = "Translation of P = kT into a pictorial external representation by high school seniors",
volume = "17",
number = "4",
pages = "656-674",
doi = "10.1039/c6rp00030d"
}

Matijašević, I., Korolija, J. N.,& Mandić, L. M.. (2016). Translation of P = kT into a pictorial external representation by high school seniors. in Chemistry Education: Research and Practice
Royal Soc Chemistry, Cambridge., 17(4), 656-674.
https://doi.org/10.1039/c6rp00030d

Matijašević I, Korolija JN, Mandić LM. Translation of P = kT into a pictorial external representation by high school seniors. in Chemistry Education: Research and Practice. 2016;17(4):656-674.
doi:10.1039/c6rp00030d .

Matijašević, Igor, Korolija, Jasminka N., Mandić, Ljuba M., "Translation of P = kT into a pictorial external representation by high school seniors" in Chemistry Education: Research and Practice, 17, no. 4 (2016):656-674,
https://doi.org/10.1039/c6rp00030d . .