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undergraduate thesis
Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama
Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2017. urn:nbn:hr:182:089872
Kanis, Laura
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

Institutional repository: Repository of the Department of Chemistry, Osijek

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Kanis, L. (2017). Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:089872

Kanis, Laura. "Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2017. https://urn.nsk.hr/urn:nbn:hr:182:089872

Kanis, Laura. "Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2017. https://urn.nsk.hr/urn:nbn:hr:182:089872

Kanis, L. (2017). 'Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 27 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:089872

Kanis L. Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2017 [cited 2024 November 27] Available at: https://urn.nsk.hr/urn:nbn:hr:182:089872

L. Kanis, "Ispitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:182:089872

Metadata
TitleIspitivanje odzivnih karakteristika ionsko-selektivne elektrode modificirane nanočesticama
Title (english)Determination of response characteristics of ion-selective electrode modified with nanoparticles
AuthorLaura Kanis
MentorMirela Samardžić (mentor)
MentorMateja Hajduković (pomoć pri izradi, neposredni voditelj)
Committee memberMirela Samardžić (predsjednik povjerenstva)
Committee memberMateja Hajduković (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2017-09-30, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Analytic Chemistry
Abstract
Tenzidi su bifunkcionalni organski spojevi koji smanjuju površinsku napetost otopine u kojoj se nalaze. Sastoje se od hidrofilnog i hidrofobnog dijela. Hidrofilna skupina može biti pozitivno ili negativno nabijena, dok je hidrofobna skupina dugački ugljikovodični lanac koji nema naboja.Prema hidrofilnim skupinama u strukturi molekula i njihovom elektrokemijskom ponašanju tenzidi se svrstavaju u četiri glavne kategorije: anionski, kationski, neionski i amfolitski tenzidi. Najčešće metode za određivanje tenzida su titracijske metode, a najkorištenija metoda za određivanje koncentracije tenzida je poteonciometrijska titracija. Elektrode za ispitivanje koncentracije tenzida mogu biti modificirane nanočesticama koje poboljšavaju svojstva elektrode. U eksperimentalnom dijelu rada ispitan je odziv tenzidno selektivne elektrode modificirane nanočesticama na nekoliko anionskih tenzida u natrijevu sulfatu i destiliranoj vodi. Mjerenja su izvršena s Philips elektrodom koja u membrani sadrži ionski par tetraoktadecilamonijev tetrafenilborat (TODA-TPB) modificiran višestjenčanim ugljikovim nanočesticama (MWCNT, eng. multi-walled carbon nanotubes).
Abstract (english)
Surfactants are bifunctional organic compounds that reduce the surface tension of the solution in which they are found. They consist of a hydrophilic and a hydrophobic part. The hydrophilic group may be positively or negatively charged, while the hydrophobic group is a non-charged hydrocarbon chain. According to the hydrophilic groups in the molecular structure and their electrochemical behavior, the surfactants are classified into four major categories: anionic, cationic, nonionic and ampholytic surfactants. The most common methods for determination of surfactatnts are titration methods, and the most commonly used is potentiometric titration. Electrodes for determination of surfactants concentration can be modified by nanoparticles that improve their properties. In the experimental part, the response characteristics of surfactant selective electrode modified with nanoparticles were investigated in water and sulfate solutions of several anionic surfactants. on several anionic surfactants in sodium sulphate and distilled water was tested. The measurements were performed usinga Philips electrode with membrane based on tetraoctadecylamonium tetraphenylborate (TODA-TPB) ion pair, andmodified by multi-walled carbon nanotubes (MWCNT).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:089872
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 on2018-01-02 10:55:32