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undergraduate thesis
Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama
2016. urn:nbn:hr:182:462422
Živković, Pavo
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

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Živković, P. (2016). Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:462422

Živković, Pavo. "Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2016. https://urn.nsk.hr/urn:nbn:hr:182:462422

Živković, Pavo. "Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2016. https://urn.nsk.hr/urn:nbn:hr:182:462422

Živković, P. (2016). 'Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 18 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:462422

Živković P. Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2016 [cited 2024 November 18] Available at: https://urn.nsk.hr/urn:nbn:hr:182:462422

P. Živković, "Karakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:182:462422

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Metadata
TitleKarakterizacija tenzidne elektrode na prevučenoj žici sa ugljikovim nanočesticama
Title (english)Characterization of surfactant coated wire electrode with carbon nanotubes
AuthorPavo Živković
MentorNikola Sakač (mentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2016-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Analytic Chemistry
Abstract
Tenzidi su bifunkcionalni organski spojevi koji se sastoje od hidrofilnog i hidrofobnog dijela. Glavna karakteristika im je smanjivanje površinske napetosti, a zbog svojih drugih svojstava su široku primjenu pronašli u proizvodima za čišćenje. S obzirom na naboj hidrofilnog dijela ih dijelimo na kationske, anionske, neionske i amfoterne (amfolitske). Nanočestice su čestice kojima je jedna dimenzija manja od 100 nanometara. Budući da imaju izvanredna svojstva pronalaze vrlo široku primjenu, a jedna od njih je izrada elektrokemijskih senzora. Vrlo je važno određivanje koncentracije tenzida zbog čega su danas razvijene brojne metode od kojih se najčešće upotrebljava potenciometrijska titracija. U potenciometrijskim titracijama se kao elektrokemijski senzori koriste ion selektivne elektrode. Najjednostavnija ion selektivna elektroda je elektroda na presvučenoj žici (coated wire). Za poboljšavanje karakteristika elektrode na presvučenoj žici koriste se ugljikove nanočestice. Eksperimentalnim mjerenjima je utvrđen odziv MWCNT coated wire tenzidne elektrode na kationske i anionske tenzide, te su odrađene titracije upotrebom MWCNT coated wire tenzidne elektrode i ispitan je utjecaj interferenata na istu.
Abstract (english)
Surfactants are bifunctional organic compounds which contain hydrophilic and hydrophobic part. Main characteristic is lowering surface tension but they are widely used in detergents because of their other properties. Considering the charge od hydrophilic part they are classified as cationic, anionic, nonionic and amphoteric (ampholytic).Nanoparticles are particles with one dimensionsmallerthan 100 nanometers.They are widely used because of their extraordinary properties and one of the usage is constructing electrochemical sensors. It is very important to determine concentration of surfactants and because of that many methods are developed. One of the most common method is potentiometric titration. We use ion selective electrode as electrochemical sensor in potentiometric titration. One of the simplest ion selective electrode is coated wire electrode. We use nanoparticles in production of coated wire electrodes for improving their characteristic. In experimental measurements response of MWCNT coated wire surfactant electrode on cationic and anionic surfactants is determined. Using coated wire electrode we performed potentiometric titrations and examined influence of intereferents.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:462422
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 on2017-01-04 09:29:17