prikaz prve stranice dokumenta Sinteza novog senzorskog materijala za određivanje anionskih tenzida
  Download
PDF 535.64 KB
undergraduate thesis
Sinteza novog senzorskog materijala za određivanje anionskih tenzida
2015. urn:nbn:hr:182:798839
Matić, Antonia
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

Cite this document

Matić, A. (2015). Sinteza novog senzorskog materijala za određivanje anionskih tenzida (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:798839

Matić, Antonia. "Sinteza novog senzorskog materijala za određivanje anionskih tenzida." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2015. https://urn.nsk.hr/urn:nbn:hr:182:798839

Matić, Antonia. "Sinteza novog senzorskog materijala za određivanje anionskih tenzida." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2015. https://urn.nsk.hr/urn:nbn:hr:182:798839

Matić, A. (2015). 'Sinteza novog senzorskog materijala za određivanje anionskih tenzida', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 10 December 2024, https://urn.nsk.hr/urn:nbn:hr:182:798839

Matić A. Sinteza novog senzorskog materijala za određivanje anionskih tenzida [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2015 [cited 2024 December 10] Available at: https://urn.nsk.hr/urn:nbn:hr:182:798839

A. Matić, "Sinteza novog senzorskog materijala za određivanje anionskih tenzida", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:182:798839

Please login to the repository to save this object to your list.
Metadata
TitleSinteza novog senzorskog materijala za određivanje anionskih tenzida
Title (english)Synthesis of the new sensor material for determination of anionic surfactant
AuthorAntonia Matić
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 country2015-09-30, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Anionski tenzidi su visoko pjeneće površinski aktivne tvari. Disocijacijom u vodenoj otopini daju organske anione i smanjuju napetost površine. Lako se raspršuju te se koriste u praškastim i tekućim detergentima. Anionski tenzidi se mogu odrediti titracijskim, spektrofotometrijskim, kromatografskim metodama i metodama injektiranja u protok. Titracijske metode se zasnivaju na stvaranju ionskih asocijata (ionskih parova) anionskih tenzida s kationskim titransima. Ionski parovi su čestice suprotno nabijenih iona povezanih Coulombovim privlačnim silama u koncentriranim otopinama elektrolita. Ionsko-selektivne elektrode su elektrokemijski senzori koji omogućuju potenciometrijsko određivanje analita. Otapanjem i uparavanjem otopina dimetildioktadecilamonijeva klorida (DMDODAC) i natrijeva tetrafenilborata (NaTPB), dobiven je talog ionskog para dimetildioktadecilamonijeva tetrafenilborata (DMDODA-TPB). Nastali ionski par je zatim ekstrahiran, pročišćen i izoliran. Novo sintetizirani materijal DMDODA-TPB testiran je kao senzorski materijal pri potenciometrijskoj titraciji anionskog tenzida. Standardna otopina cetilpiridinijeva klorida (CPC) koncentracije 4 x 10-3 moldm-3 korištena je kao titrans, a kao analit otopina natrijevog dodecilsulfata (NaDDS) koncentracije 4 x 10-3 moldm-3.
Abstract (english)
Anionic surfactants are high-foaming active compounds. When dissociate in aqueous solutions, they form organic anions and reduce surface tension. They are well dispersed in water, and used in powder detergents and liquid detergents. Anionic surfactants can be analyzed by using titration methods, spectrophotometric methods, chromatographic methods and by flow injection analysis. Titration methods are based on the forming of ion associates (ion pairs) between anionic surfactants and cationic titrants. Ion-pairs are formed from oppositely charged ions associated by Coulomb interactions in concentrated electrolyte solutions. Ion-selective electrodes are electrochemical sensors that are designed for the potentiometric determination of analytes. The precipitate of ion pair dimethyldioctadecylammonium tetraphenylborate (DMDODA–TPB) was formed by dissolving and evaporating of dimethyldioctadecylammonium chloride (DMDODAC) and sodium tetraphenylborate (NaTPB) solutions. The ion pair was then extracted, purified and isolated. The new synthesized material DMDODA-TPB has been tested as a sensor material in potentiometric titration of anionic surfactants. Standard solution of cetylpyridinium chloride (CPC) at concentration of 4 x 10-3 moldm-3 was used as a titrant and a solution of sodium dodecylsulfate (NaDDS) at concentration of 4 x 10-3 moldm-3 was used as the analyte.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:798839
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
Terms of useLicence In copyright icon
Created on2016-06-07 07:10:32