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master's thesis
Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza
Zagreb: University of Zagreb, Faculty of Science, 2022. urn:nbn:hr:217:552545
Pikec, Petra
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

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Pikec, P. (2022). Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:552545

Pikec, Petra. "Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:552545

Pikec, Petra. "Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:552545

Pikec, P. (2022). 'Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza', Master's thesis, University of Zagreb, Faculty of Science, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:552545

Pikec P. Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2022 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:217:552545

P. Pikec, "Određivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:217:552545

Metadata
TitleOdređivanje gadolinija metodom ICP-MS nakon sorpcije na nanočesticama željeza
Title (english)ICP-MS determination of gadolinium after sorption on iron nanoparticles
AuthorPetra Pikec
MentorSanda Rončević (mentor)
Committee memberSanda Rončević (predsjednik povjerenstva)
Committee memberInes Primožič (član povjerenstva)
Committee memberBiserka Prugovečki (član povjerenstva)
Committee memberTomislav Jednačak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2022-10-20, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Gadolinij (Gd) je glavna komponenta kontrasta za magnetsku rezonanciju (MR). Nakon primjene se može izlučiti iz organizma nemetaboliziran pri čemu dospijeva u otpadne i prirodne vode te predstavlja opasnost za okoliš. Nanočestice željeza imaju jedinstvena adsorpcijska i redukcijska svojstva, mobilnost i nisku cijenu zbog čega imaju široku primjenu u uklanjanju raznih onečišćenja vodenih sustava poput organskih i kloriranih otapala, pesticida i anorganskih zagađivača. Ispitana je učinkovitost uklanjanja gadolinija iz vodenih otopina gadolinijevog kontrasta (Gd-DOTA) sorpcijom na nanočesticama željeza i nanočesticama željeza modificiranim s 2,6-piridindikarboksilnom kiselinom (Fe:PDCA = 2:1). Metodom spektrometrije masa uz induktivno spregnutu plazmu (ICP-MS) određena je koncentracija zaostalog gadolinija u otopinama nakon sorpcije. Uspoređena je učinkovitost sorpcije iona Gd3+ na nanočesticama željeza i nanočesticama modificiranim s PDCA te učinkovitost sorpcije iz standardnih otopina gadolinija i otopina gadolinijevog kontrasta. Efikasnost uklanjanja gadolinija iz standardnih otopina doseže do 99,8% s nanočesticama željeza, dok je maksimum uklanjanja iz gadolinijevog kontrasta 31,3%.
Abstract (english)
Gadolinium (Gd) as main component of MRI contrast agents after application can be excreted from the human body unmetabolized and therefore present a risk for environment through groundwater pollution. Iron nanoparticles have unique adsorption and reduction properties, mobility and low cost which is why they are widely used in removing water pollutants such as organic and chlorinated solvents, pesticides and inorganic pollutants. Efficiency of removing gadolinium from aqueous gadolinium contrast solution (Gd-DOTA) by sorption on zero valent iron nanoparticles (nZVI) and nanoparticles modified by pyridine-2,6-dicarboxylic acid (Fe:PDCA = 2:1) was examined. The concentration of residual gadolinium after sorption was determined by inductively coupled plasma mass spectrometry (ICP-MS). The efficiency of sorption of Gd3+ ions on nZVI and those modified with PDCA were compared and the efficiency of absorption from standard gadolinium solutions and gadolinium contrast solutions were correlated. Efficiency of gadolinium removal from standard solutions reaches 99,8 % with nZVI, while removal from gadolinium contrast was 31,3 %.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:552545
Study programmeTitle: Graduate university studies in chemistry; specializations in: Research programme
Course: Research programme
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2024-10-20
Terms of useLicence In copyright icon
Created on2022-11-04 11:51:24