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undergraduate thesis
Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom
2014. urn:nbn:hr:182:070436
Perković, Tomislav
Josip Juraj Strossmayer University of Osijek
Department of Chemistry

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Perković, T. (2014). Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:070436

Perković, Tomislav. "Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2014. https://urn.nsk.hr/urn:nbn:hr:182:070436

Perković, Tomislav. "Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2014. https://urn.nsk.hr/urn:nbn:hr:182:070436

Perković, T. (2014). 'Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 18 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:070436

Perković T. Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2014 [cited 2024 November 18] Available at: https://urn.nsk.hr/urn:nbn:hr:182:070436

T. Perković, "Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2014. Available at: https://urn.nsk.hr/urn:nbn:hr:182:070436

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Metadata
TitleOdabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom
Title (english)Titrant selection for anionic surfactant determination with the new potentiometric sensor
AuthorTomislav Perković
MentorMirela Samardžić (mentor)
MentorOlivera Galović (komentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
Osijek
Defense date and country2014, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Tenzidi ili površinske tvari su bifunkcionalni organski spojevi koji se sastoje od hidrofilnog i hidrofobnog dijela. Zbog tog svojstva imaju tendenciju skupljanja na granici dviju faza. Tenzidi se dijele na kationske, anionske, neionske i amfolitske. Anionski tenzidi su površinski aktivne tvari s jednom ili više funkcionalnih grupa, koje u vodenim otopinama ioniziraju dajući negativno nabijene površinski aktivne organske ione. Anionski tenzidi se mogu određivati pomoću titracijskih metoda, spektrofotometrijskih metoda, kromatografskih metoda, itd. Pri određivanju anionskih tenzida titracijskim metodama, danas se najčešće koriste ionsko-selektivne elektrode (ISE) kao potenciometrijski senzori. Pri potenciometrijskom određivanju anionskih tenzida koristili smo ionsko-selektivnu elektrodu čija je membrana sadržavala ionski par dimetildioktadecilamonijevtetrafenilborat (DMDODA-TPB). Određivali smo utjecaj titransa na oblik titracijskih krivulja u cilju određivanja najpovoljnijeg titransa. Kao titranse smo koristili cetilpiridinijev klorid (CPC), 1,3-didecil-2-metilimidazolijev klorid (DMIC), Hyamine i heksadeciltrimetilamonijev bromid (CTAB) koncentracije 4 x 10−3 mol/dm3. Kao analiti su korištene otopine natrijeva dodecilsulfata (NaDDS) i natrijeva dodecilbenzensulfonata (NaDBS) koncetracije 4 x 10−3 mol/dm3.
Abstract (english)
Surfactants or surface-active agents are bifunctional organic compounds consisting of hydrophilic and hydrophobic interactions. Due to that attribute they have a tendency of aggregating on the boundary of two phases.There are foure types of surfactants: cationic, anionic, nonionic and ampholytic. Anionic surfactants are surface-active agents that have one or more functional groups that ionize in water solutions, giving negatively charge surface active organic ions. Anionic sufactants may be determined by means of titration method of analysis, spectrophotometric methods, chromatographical methods, etc. In determining anionic surfactants through applying the titration method of analysis, in the present day, ion-selective electrodes (ISE) are most frequently used as potentiometric sensors. For potentiometric determination of anionic surfactants, we applied an ionselective electrode whose membrane had contained ion pair dimethyldioctadecylammonium-tetraphenylborate (DMDODA-TPB). We determined the impact of titrans on the titration curves in order to determine the most favorable titrant. As titrants we used cetylpyridinium chloride (CPC), 1,3-didecyl-2-methylimidazolium chloride (DMIC), Hyamin and hexadecyltrimethylammonium bromide (CTAB) at concentration of 4 x 10-3 mol/dm³.Sodium dodecyl sulfate (NaDDS) and sodium dodecylbenzenesulfonate (NaDBS) at concentrations of 4 x 10−3 mol / dm3 were used as analytes.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:070436
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
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Created on2016-07-15 07:23:25