engleski

Application of a new surfactant sensor, based on functionalized MWCNTs, for the determination of anionic surfactants in municipal wastewaters

The application of a new anionic surfactant sensitive sensor containing multi-walled carbon nanotubes noncovalently functionalized with tetraoctadecylammonium tetraphenylborate for the potentiometric determination of ASs content in municipal wastewaters was described. The two titration modes (DETand MET) were investigated. The obtained recoveries ranged between 73.8 and 94.4% for the DET mode and from 87.3 and 103.8% for the MET mode indicating remarkable higher accuracy achieved using MET mode.The end point volumes were reliable estimated from the first derivative curves by using the Savitzky-Golay-Barak method. A satisfactory agreement between standard MBAS method and MET mode was obtained.

surfactant sensor, municipal wastewater, potentiometric titration, MET mode, DET mode

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