Solid Contact Potentiometric Sensors Based on a New Class of Ionic Liquids on Thiacalixarene Platform.

摘要: New solid-contact potentiometric sensors have been developed for hydrogen phosphate recognition on the basis of ionic liquids containing tetrasubstituted derivatives thiacalix[4]arene in cone and 1,3-alternate conformations with trimethyl- triethylammonium fragments at lower rim substituents. The selected anions including carbonate, phosphate, perchlorate, oxalate, picrate, EDTA was conducted using electrochemical impedance spectroscopy ferricyanide redox probe. For sensor assembling, were stabilized by multiwalled carbon nanotubes black deposited glassy electrode. influence support, steric factors modification conditions performance has investigated. As shown, make it possible to selectively determine anion within concentration range from 1×10-2 1×10-6 M limit detection 2×10-7 – unbiased selectivity coefficients varied 1.2×10-1 1.0×10-8 (carbonate, acetate, succinate, glutharate, glycolate malonate anions).