The analysis of multicomponent solutions containing homologous ionic surfactant with sensor arrays

The electrode, transport, and selective properties of membranes based on alkyl sulphates and alkyl pyridinium tetraphenylborates enable their usage in multi-sensor systems (“electronic tongue”). The cross-sensitivity parameters of our surfactant sensors were determined and separate detection of several homologous ionic surfactant was performed by means of solid-contact potentiometric sensor arrays and artificial neural networks (ANN) in 2–5-component solutions of sodium alkyl sulphates and alkyl sulphonates, alkyl pyridinium chlorides. Optimal component ratios and concentration ranges of homologous ionic surfactant were established.