undergraduate thesis
Potentiometric determination of anionic surfactant using home-made FIA/SIA system

Anita Mihalak (2016)
Metadata
TitlePotenciometrijsko određivanje anionsko površinski aktivnih tvari pomoću FIA/SIA sustava vlastite izrade
AuthorAnita Mihalak
Mentor(s)Milan Sak-Bosnar (thesis advisor)
Olivera Galović (thesis advisor)
Abstract
Razvojem znanosti dolazi do sve veće potražnje za bržim i efikasnijim metodama analize tvari. Potreba za korištenjem što manje količine uzorka s velikom preciznošću analize u vrlo kratkom vremenu, dovela je do razvoja mikrofluidike. Analiza injektiranjem u protok (flow injection analysis, FIA) prva je moderna mikrofluidička metoda i definirana je kao analitička metoda za automatsku analizu tekućih uzoraka koja se zasniva na disperziji zone uzorka nastale injektiranjem uzorka u tok otopine nosača. Daljnim razvojem ove metode nastaje sekvencijska injekcijska analiza (sequential injection analysis, SIA ), mikrofluidička metoda čija je glavna karakteristika dvosmjerni neprekinuti tok uzorka. U ovom završnom radu korištena je navedena metoda kako bi se analizirale anionske površinski aktivne tvari pomoću screen-printed mikrosenzora. Površinski aktivne tvari ili tenzidi smanjuju površinsku napetost tekućina i sastoje se od hidrofilnog i hidrofobnog dijela. Koriste se u sredstvima za čišćenje kao i proizvodima za osobnu higijenu. Vrlo je važno kontrolirati njihovu količinu kako u proizvodima u kojima se nalaze tako i u otpadnim vodama zbog naše sigurnosti i sigurnosti okoliša.
Keywordssurfactants injection analysis microsensor
Parallel title (English)Potentiometric determination of anionic surfactant using home-made FIA/SIA system
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 date2016-09-21
Parallel abstract (English)
Rapid development of science demands faster and more efficient methods of matter analysis. The need for using smaller amounts of sample and bigger precision of analysis in shorter periods of time led to development of microfluidics. Flow injection analysis (FIA) is the first modern microfluidic method and it is defined as analytical method for automatic analysis of liquid samples. It is based on dispersion of sample zone that was made by injecting the sample in the carrier flow and detection of the wanted feature. Further development led to sequential injection analysis (sequential injection analysis, SIA), microfluidic method that uses two-way continuous flow. Described method was used in this bachelor thesis to analyze anionic surfactants. Surface active agents or surfactants lower surface tension of liquids. They consist of hydrophobic and hydrophilic end of the molecule. Surfactants are used in cleaning products and products for personal hygiene. It is very important to monitor their amount in products that we use and their presence in waste water for our own safety and the safety of our environment.
Parallel keywords (Croatian)površinski aktivne tvari tenzidi injekcijska analiza mikrosenzor
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:182:391808
CommitterSanda Hasenay