Naslov
New potentiometric sensors for determination of low levels of anionic and nonionic surfactants in effluents

Autori
Sak-Bosnar, Milan ; Madunić-Čačić, Dubravka ; Matešić-Puač, Ružica ; Grabarić, Zorana ; Grabarić, Božidar S.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Izvornik
SARIB Meeting, Ljubljana, 2007 / - , 2007

Skup
SARIB meeting

Mjesto i datum
Ljubljana, Slovenija, 14.05.2007. - 15.05.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
potentiometric sensors; anionic and nonionic surfactants

Sažetak
High sensitive potentiometric sensors for determination of anionic and a new one for nonionic surfactants have been developed. Anionic surfactants determination was down to 10-5 (10-6) mol/L, and nonionic down to 10-5 mol/L, without no sample pretreatment, except filtration when it was necessary. Equivalence point was calculated using extended least-squares regression formalism of the Savitzky-Golay method. The results for anionic surfactants agree satisfactory with standard extraction-spectrophotometric MBAS method and are comparable with the results obtained using a commercially available surfactant electrode. The accuracy and precision of the surfactants determination has been evaluated by using standard addition method.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA