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undergraduate thesis
Određivanje selenija fluorescentnom spektrometrijom
2018. urn:nbn:hr:182:144182
Kopf, Doris
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

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Kopf, D. (2018). Određivanje selenija fluorescentnom spektrometrijom (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:144182

Kopf, Doris. "Određivanje selenija fluorescentnom spektrometrijom." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:144182

Kopf, Doris. "Određivanje selenija fluorescentnom spektrometrijom." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:144182

Kopf, D. (2018). 'Određivanje selenija fluorescentnom spektrometrijom', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 14 December 2024, https://urn.nsk.hr/urn:nbn:hr:182:144182

Kopf D. Određivanje selenija fluorescentnom spektrometrijom [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2018 [cited 2024 December 14] Available at: https://urn.nsk.hr/urn:nbn:hr:182:144182

D. Kopf, "Određivanje selenija fluorescentnom spektrometrijom", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:182:144182

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Metadata
TitleOdređivanje selenija fluorescentnom spektrometrijom
Title (english)Determination of selenium by fluorescent spectrometry
AuthorDoris Kopf
MentorMirela Samardžić (mentor)
MentorMateja Budetić (mentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2018, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Analytic Chemistry
Abstract
Selenij je element 16. skupine periodnog sustava elemenata, odnosno halkogene skupine. Pripada skupini metaloida što znači da ima karakteristike metala i nemetala. Selenij je esencijalan element za čovjeka, a sadržan je u enzimima glutation peroksidazi i jodotironin 5’-dejodinazi, kao i u selenoproteinima P i N. Fluorescentna spektrometrija je metoda koja se temelji na svojstvu fluorescencije atoma ili molekula, a često se koristi za određivanje selenija. Budući da selenij nema svojstvo fluorescencije, potrebno je dodati mu reagens koji će dati odziv tijekom mjerenja u fluorimetru. U ovom radu kao fluorescentni reagens koristio se 2,3-diaminonaftalen (DAN) koji sa selenijem tvori kompleks, čiji se fluorescencijski intenzitet mjerio kako bi se odredila masena koncentracija selenija u otopinama. Rad je podijeljen u nekoliko poglavlja. Nakon uvoda slijedi literaturni pregled u kojem se govori o seleniju i njegovim svojstvima te o fluorescentnoj spektrometriji i njenoj primjeni. Iza toga slijedi eksperimentalni dio te rasprava o dobivenim rezultatima. Na kraju su zaključak i popis korištene literature.
Abstract (english)
Selenium is an element located in group 16 of the periodic table of elements, respectively it is a member of chalcogen family. It is a metalloid, which means it has characteristics of a metal and of a non-metal. Selenium is an essential element for humans, and it is found in enzymes glutathione peroxidase and iodothyronine 5’-de-iodinase, as well as in selenoproteins P and N. Fluorescence spectrometry is a method based on fluorescence property of an atom or a molecule and it is often used for selenium determination. Since selenium does not have fluorescence property, it is necessary to add a fluorescent reagent that will give response during measurements in fluorometer. In this paper, 2,3- diaminonaphthalene (DAN) was used as a fluorescent reagent which made a complex compound with selenium, whose fluorescence intensity was measured and the mass concentration of selenium in solutions was determined. The paper is divided in several chapters. Introduction chapter is followed by literature review in which selenium and its properties are presented as well as fluorescence spectrometry and its uses. After that, experimental procedure and discussion of obtained results are presented. In the end there is a final conclusion and a list of used literature.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:144182
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
Access conditionsOpen access
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Created on2018-12-13 11:13:56