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

Technique potential for classification of honey by electronic tongue

“…Ciosek Kulapina and Mikhaleva, 2005;Guti et al, 2007;Cortina et al, 2008;Calvo et al, 2008). PCA was performed on absolute data, as advised by the Alpha M.O.S.…”

Planar electrodes based on carbon nanotubes for the potentiometric determination of homologous sodium alkyl sulfates

“…It is known that solid contact sensors based on ion associates of alkyl sulfates with alkylpyridinium cations have stable elec trochemical and performance characteristics and enable the detection of both individual homologues of ionic surfactants and their total concentration in the range of 1 × 10 -6 to 5 × 10 -4 (1 × 10 -2 ) M [25][26][27]. Cer tain materials in an appropriate form (a tubular casing, a graphite rod) are required for their production.…”

“…A multisensory potentiometric system of the elec tronic tongue type, consisting of carbon paste screen printed electrodes, was applied in the analysis of drinking water, soft drinks, and beer [24]. Potentio metric solid contact sensors were designed, sensitive to surfactants of different types [25][26][27][28].…”

Influence of hydrophobicity of alkyl sulfate and alkylpyridinium surfactants on the transport characteristics of plasticized polyvinyl chloride membranes

“…Greater attention is paid to the transport of surfactants through ion exchange membranes: the permeability and cation flux of nitrogen containing organic bases were studied [11][12][13]; the diffusion per meability, electric conductivity, and current-voltage characteristics of heterogeneous anion exchange membranes after their interaction with dodecyl sulfate ions under polarization conditions were measured [14]; and the results of investigation of the moisture content, water distribution in the membrane, as well as electric transport properties and electrokinetic effects in heterogeneous and homogeneous ion exchange membranes depending on the sorption of surface active cations, anions, and neutral organic substances on them, were described [15][16][17][18]. In the basis of pub lished data, it can be concluded that the rate of surfac tant transfer through the membranes is affected by var ious factors, such as the pH of the solutions, the sizes and concentration of diffusant molecules, ionic strength, resistance, viscosity of the medium, temper ature, hydrolytic pressure, size of blowing agents or nature of the active components of the membranes, and membrane thickness and surface area.…”