Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom

Perković, Tomislav

prikaz prve stranice dokumenta Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom

Download
PDF 878.19 KB

undergraduate thesis

Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom

Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2014. urn:nbn:hr:182:070436

Perković, Tomislav

Josip Juraj Strossmayer University of Osijek
Department of Chemistry

Cite this document

APA 6th Edition

Perković, T. (2014). Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom (Undergraduate thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:070436

MLA 8th Edition

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

Chicago 17th Edition

Harvard

Perković, T. (2014). 'Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 19 January 2021, https://urn.nsk.hr/urn:nbn:hr:182:070436

Vancouver

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 2021 January 19] Available at: https://urn.nsk.hr/urn:nbn:hr:182:070436

IEEE

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

Cite this item: https://urn.nsk.hr/urn:nbn:hr:182:070436

Islandora Bookmark - Please login to use this feature

Metadata

Title	Odabir titransa za određivanje anionskih tenzida novim potenciometrijskim senzorom
Title (english)	Titrant selection for anionic surfactant determination with the new potentiometric sensor
Author	Tomislav Perković
Mentor	Mirela Samardžić (mentor)
Mentor	Olivera Galović (komentor)
Granter	Josip Juraj Strossmayer University of Osijek Department of Chemistry Osijek
Defense date and country	2014, 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)
Language	croatian
URN:NBN	urn:nbn:hr:182:070436
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	2016-07-15 07:23:25

Nacionalna i sveučilišna knjižnica u Zagrebu

Dabar