Određivanje selenija fluorescentnom spektrometrijom

Kopf, Doris

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undergraduate thesis

Određivanje selenija fluorescentnom spektrometrijom

Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 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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APA 6th Edition

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

MLA 8th Edition

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

Chicago 17th Edition

Harvard

Kopf, D. (2018). 'Određivanje selenija fluorescentnom spektrometrijom', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 09 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:144182

Vancouver

Kopf D. Određivanje selenija fluorescentnom spektrometrijom [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2018 [cited 2024 November 09] Available at: https://urn.nsk.hr/urn:nbn:hr:182:144182

IEEE

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

Cite this item: https://urn.nsk.hr/urn:nbn:hr:182:144182

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Metadata

Title	Određivanje selenija fluorescentnom spektrometrijom
Title (english)	Determination of selenium by fluorescent spectrometry
Author	Doris Kopf
Mentor	Mirela Samardžić (mentor)
Mentor	Mateja Budetić (mentor)
Granter	Josip Juraj Strossmayer University of Osijek Department of Chemistry (Department of Analytical, Organic and Applied Chemistry) Osijek
Defense date and country	2018, 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)
Language	croatian
URN:NBN	urn:nbn:hr:182:144182
Study programme	Title: 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 resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of the Department of Chemistry, Osijek
Created on	2018-12-13 11:13:56