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undergraduate thesis
Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata
2021. urn:nbn:hr:182:133897
Vidas, Bernarda
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry

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Vidas, B. (2021). Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:133897

Vidas, Bernarda. "Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2021. https://urn.nsk.hr/urn:nbn:hr:182:133897

Vidas, Bernarda. "Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2021. https://urn.nsk.hr/urn:nbn:hr:182:133897

Vidas, B. (2021). 'Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:133897

Vidas B. Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2021 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:182:133897

B. Vidas, "Utjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:182:133897

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TitleUtjecaj termodinamičkih čimbenika na taloženje kalcijeva oksalata monohidrata
Title (english)The effect of thermodynamic factors on the precipitation od calcium oxalate monohydrate
AuthorBernarda Vidas
MentorAnamarija Stanković (mentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry)
Osijek
Defense date and country2021-09-29, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Inorganic Chemistry
Abstract
Istraženo je spontano taloženje kalcijevog oksalata monohidrata (COM) u sustavima bez aditiva s gotovo istom početnom supersaturacijom. Utjecaj termodinamičkih parametara kao što su: temperatura (t = 25, 36,5 i 48 °C), raspon koncentracije kalcija od 5 mmol dm−3 ≤ ci(Ca2+) ≤ 10 mmol dm−3 i pH (5,6, 6,5 i 7,5) proučavane su potencijalne promjene u strukturi, morfologiji i veličini kristala COM. Vrijednosti početnih parametara varirale su u širokom rasponu i uključivale su vrijednosti relevantne za oponašanje fizioloških stanja vezanih uz one u biološkim sustavima i nastajanje bubrežnih kamenaca. Rezultati su pridonijeli saznanjima o utjecaju odabranih pojedinačnih parametara kao i njihovoj međudjelovanje utjecaja na in vitro taloženje COM. Nalazi su pokazali da je COM jedina istaložena faza koja pokazuje dominantnu dendritsku morfologiju. Učinci na veličinu kristala, strukturu i morfologiju izraženiji su pri višoj temperaturi, pH i koncentraciji kalcija. Ovi rezultati daju osnovu za buduća istraživanja cjelokupnog mehanizma stvaranja COM i buduća istraživanja prevencije bubrežnih kamenaca.
Abstract (english)
Spontaneous precipitation of calcium oxalate monohydrate (COM) in additive-free systems with nearly the same initial supersaturation has been investigated. The influence of thermodynamic parameters such as: temperature (t = 25, 36.5 and 48 °C), calcium concentration range of 5 mmol dm−3 ≤ ci(Ca2+) ≤ 10 mmol dm−3 and pH (5.6, 6.5 and 7.5), on the potential changes in structure, morphology and crystal size of COM have been studied. The values of the initial parameters were varied in a wide range and included values relevant for mimicking the physiological conditions related to those in biological systems and kidney stone formation.The results contributed to the knowledge about the influence of the selected individual parameters as well as their interplay influence on in vitro precipitation of COM. The findings have indicated that COM was the only precipitated phase exhibiting predominant dendritic morphology. The effects on crystal size, structure and morphology are more pronounced at higher temperature, pH and calcium concentration. These results provide basis for future studies of overall mechanism of COM formation and the future studies of kidney stone prevention.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:133897
Study programmeTitle: Chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije)
Type of resourceText
File originBorn digital
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Created on2022-08-01 09:45:45