Naslov
Sequential injection analysis of anionic surfactants using a potentiometric detector

Autori
Galović, Olivera, Madunić-Čačić, Dubravka ; Sak-Bosnar, Milan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
The 22nd Congress of Chemists and Technologists of Macedonia, Book of Abstracts / Hadzi Jordanov, Svetomir ; Paunovic, Perica - Ohrid : Society of Chemists and Technologists of Macedonia, 2012, 84-84

ISBN
978-9989-760-11-2

Skup
22nd Congress of Chemists and Technologists of Macedonia

Mjesto i datum
Ohrid, Sjeverna Makedonija, 05.09.2012. - 09.09.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
microfluidics; sequential injection analysis; anionic surfactant; model; effluent

Sažetak
Sequential Injection Analysis (SIA), the second generation of Flow Injection Analysis (FIA) techniques, was used in these investigations for determination of anionic surfactants in diluted detergent formulations, used as model effluents. A flow through home-made potentiometric detector, implemented into a home-made SIA system, recorded the electromotive force changes as a function of the investigated AS concentration. Sodium dodecyl sulfate and sodium dodecyl benzensulfonate were used for the calibration purpose. The specific software was developed for the data acquisition and elaboration, as well as for the instrument control. The detector exhibited almost Nernstian response toward the surfactants investigated down to 10-6 M. A 1, 3-didecyl-2-methylimidazolium-tetraphenylborate ion-pair was applied as electroactive material in the detector sensing element. Sample and reagent injection as the initial input parameters were investigated and optimized. A special attention was paid to the controlled dispersion process as well as to the reproducible timing. The standard addition methodology was used for testing the method, whereas the potentiometric titration was used as a reference method. The described SIA device was tested in stopped-flow mode too.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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