Naslov
New ion-pair based all-solid-state surfactant sensitive sensor for potentiometric determination of cationic surfactants

Autori
Matešić-Puač, Ružica ; Sak-Bosnar, Milan ; Bilić, Mate ; Grabarić, Božidar S.

Izvornik
Electroanalysis (1040-0397) 16 (2003), 10; 843-851

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Ion-selective electrodes ; Cationic surfactants ; Potentiometric surfactant determination ; PVC membrane ; Surfactant sensor

Sažetak
Cationic surfactants of different types were determined using a few potentiometric sensors based on ion-pair complexes (dodecyldimethylbenzylammonium dodecylsulfate, dodecylmethylbenzylammonium dodecylbenzensulfonate, tetrahexadecylammonium dodecylsulfate and Hyamine (benzethonium dodecylsulfate) as sensing materials. The response of the all-solid state surfactant sensitive electrode based on a Teflonized graphite conducting substrate, coated with a PVC membrane containing sensing material, was investigated in the solutions of Hyamine and hexadecyltrimethylammonium ion in the concentration range from 1 mM to 10 mM. Potentiometric surfactant cation titration has been performed using sodium dodecylsulfate as titrant and an ion-pair-based surfactant sensitive electrode as a potentiometric indicator. Several commercial surfactant products have also been titrated and the results were compared with those obtained with two-phase standard titration method.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA