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undergraduate thesis
Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida
2018. urn:nbn:hr:182:611728
Pajičić, Milan
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

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Pajičić, M. (2018). Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:611728

Pajičić, Milan. "Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:611728

Pajičić, Milan. "Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:611728

Pajičić, M. (2018). 'Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 18 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:611728

Pajičić M. Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2018 [cited 2024 November 18] Available at: https://urn.nsk.hr/urn:nbn:hr:182:611728

M. Pajičić, "Ispitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:182:611728

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TitleIspitivanje odziva tenzidno-selektivne elektrode na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida
Title (english)Investigation of surfactant-selective electrode response characteristics toward the pseudocationic complexes of barium cation and ethxyated nonionic surfactants
AuthorMilan Pajičić
MentorMirela Samardžić (mentor)
Committee memberMirela Samardžić (predsjednik povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2018-04-09, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Analytic Chemistry
Abstract
Tenzidi su organski spojevi koji smanjuju napetost površine. Sastoje se od dva dijela: polarnog i nepolarnog (hidrofilnog i hidrofobnog). Prema hidrofilnim skupinama koje se nalaze unutar strukture tenzida, tenzide dijelimo u četiri skupine: kationski, anionski, amfolitski i neionski. Metode kojima se najčešće određuju tenzidi su potenciometrijske metode. Metoda koja je korištena u ovome radu je direktna potenciometrija, koja je također i najčešća metoda ispitivanja odziva tenzida. U eksperimentalnom dijelu rada je ispitan odziv tenzidno-selektivne elektrode, koja se sastojala od ionskog para 1,3-didecil-2-metilimidazolijevog tetrafenilborata (DMI-TPB), na pseudokationske komplekse barijevog iona i etoksiliranih neionskih tenzida. Ispitivanje se provelo dodavanjem dvije koncentracije različitih vrsta etoksiliranih neionskih tenzida u otopinu barijeva klorida stalnog volumena i koncentracije. Odzivi elektrode prikazani su grafički te je napravljena usporedba odziva dvije skupine etoksiliranih neionskih tenzida sličnih svojstava.
Abstract (english)
Surfactants are organic compounds that are reducing surface tension. They consists of two parts: polar and non-polar (hydrophilic and hydrophobic). According to the hydrophilic groups found within the structure of surfactants, the surfactants are divided into four groups: cationic, anionic, ampholytic and nonionic. The most frequently used methods for determination of the surfactants are potentiometric methods. The method used in this paper is direct potentiometry, which is also the most common method for surfactant response analysis. In the experimental part of the study, a response of a surfactant-selective electrode consisting of 1,3-didecyl-2-methylimidazolium tetraphenylborate (DMI-TPB) ion pair was tested, to the pseudocationic complexes of barium ions and ethoxylated nonionic surfactants. The test was carried out by adding different types of ethoxylated nonionic surfactants prepared at two concentrations in a solution of constant volume and concentration of barium chloride. The electrode responses were graphically illustrated and a comparison of the response of two groups of ethoxylated nonionic surfactants of similar properties was made.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:611728
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 on2018-12-20 09:07:06