undergraduate thesis
Potentiometric PVC nanoparticles enriched surfactant sensor

Dora Harangozo (2016)
Metadata
TitlePotenciometrijski PVC tenzidni senzor obogaćen nanočesticama
AuthorDora Harangozo
Mentor(s)Milan Sak-Bosnar (thesis advisor)
Nikola Sakač (thesis advisor)
Abstract
Novi potenciometrijski senzor za anionske tenzide pripremljen je na osnovi višestjenčanih ugljikovih nanocjevčica (MWCNT) koji su upotrebljene za imobilizaciju 1,3-didecil-2-metilimidazol tetrafenilborat (DMI-TPB) ionskog para kao ionofora u membrani. Istraživani senzor pokazao je Nernstovski odziv za dodecilbenzensulfonat i dodecilsulfat. Odziv je prikazan unutar 8-10 sekundi za svaku deseterostruku promjenu koncentracije u rasponu od 1 x 10-7 M do 1 x 10-3 M. Granice detekcije za DBS i DS su 1 x 10-6 i 2 x 10-7 M. Senzor daje stabilan potenciometrijski odziv, te pokazuje zadovoljavajuću selektivnost za DS. Glavna primjena senzora je bila u otkrivanju završnih točaka u potenciometrijskim titracijama anionskih tenzida. Hyamine 1622, heksadeciltrimetilamonijev bromid i cetilpiridinijev klorid su testirani kao potencijalni kationski titranti i svi su dali analitički upotrebljive titracijske krivulje s dobro definiranim točkama ekvivalencije. Operativni životni vijek opisanog senzora je oko 3 mjeseca.
Keywordssurfactant sensor nanotubes potentiometrics titration
Parallel title (English)Potentiometric PVC nanoparticles enriched surfactant sensor
GranterSveučilište Josipa Jurja Strossmayera u Osijeku
Odjel za kemiju
Lower level organizational unitsZavod za analitičku, organsku i primijenjenu kemiju
PlaceOsijek
StateCroatia
Scientific field, discipline, subdisciplineNATURAL SCIENCES
Chemistry
Analytic Chemistry
Study programme typeuniversity
Study levelundergraduate
Study programmeChemistry
Academic title abbreviationuniv. bacc. chem.
Genreundergraduate thesis
Language Croatian
Defense date2016-07-28
Parallel abstract (English)
A new potentiometric anionic surfactant sensor was prepared based on multi-walled carbon nanotubes (MWCNTs) used for immobilisation of 1,3-didecyl-2-methylimidazolium tetraphenylborate (DMI-TPB) ion pair as ionophore in the membrane. The investigated sensor showed a Nernstian response for both dodecylbenzenesulphonate and dodecyl sulphate. It responded in 8-10 seconds for each ten-fold concentration change in the range of 1 x 10-7 M to 1 x 10-3 M. The detection limits for DBS and DS were 1 x 10-6 and 2 x 10-7 M, respectively. The sensor revealed a stable potentiometric response and exhibited satisfactory selectivity for DS. The main application of the sensor was in the end-point detection in potentiometric titrations of anionic surfactants. Hyamine 1622, hexadecyltrimethylammonium bromide and cetylpyridinium chloride were tested as potential cationic titrants, and all exhibited analytically usable titration curves with well-defined equivalence point. The operational life time of the sensor described amounted ca. 3 months.
Parallel keywords (Croatian)tenzidi senzor nanocjevčice potenciometrija titracija
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
ProjectProject funder: Hrvatska zaklada za znanost
Project jurisdiction: HR
Project manager: Milan Sak-Bosnar
Project name: Primjena nanomaterijala u izradi potenciometrijskih tenzidnih senzora za primjenu u industriji i zaštiti okoliša
Project acronym: NANOSENS
Project ID: IP-11-2013
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:182:700486
CommitterSanda Hasenay