Quantification of Binary and Ternary Mixtures of Homologous Nonylphenol Polyethoxylates Using the Potentiometric Sensor Array

Abstract

The electronic tongue system based on the potentiometric sensor array for the determination of nonionic surfactants was developed. Multivariate statistical analysis techniques as partial least squares (PLS) method and backpropagation artificial neural networks (ANN) were used for data processing. The proposed system was applied for the quantitative analysis of homologous polyoxyethylated nonylphenols in complex multicomponent model mixtures and natural water samples. The least relative errors of detection were obtained for artificial neural network. Proposed approach could be applied to further analyze of sewage waters and commercial technical samples.

Electronic Tongues Employing Electrochemical Sensors

“…Their mixtures were also determined automatically with a specially devised electronic tongue employing an SIA system [128]. Recently, also nonionic surfactant mixtures were determined in a similar way [129].…”

Planar potentiometric sensors based on carbon materials for determination of sodium dodecyl sulfate

“…The known sensors for determination of surfactants of different types are potentiometric solid-contact sen sors with polymer plasticized membranes [15][16][17][18][19].…”