EFFECT OF STERIC ACCESSIBILITY OF EXCHANGE CENTER OF HIGHER QUATERNARY AMMONIUM SALTS AND PLASTICIZER NATURE ON CHARACTERISTICS OF ELECTRODES, REVERSIBLE TO DOUBLE-CHARGED ANIONS

  • E.M. Rakhman’ko Белорусский государственный университет
  • Yu.V. Matveiychuk Могилевский государственный университет продовольствия
Keywords: quaternary ammonium salts, ion-selective electrodes, low detection limit, selectivity coefficient, double-charged hydrophilic anions

Abstract

The effect of the steric accessibility of the exchange center of higher quaternary ammonium salts and plasticizer nature on the selectivity and the limit of detection for film electrodes reversible to hydrophilic double-charged anions was studied. It was established the decrease in selectivity coefficients lgKi,jPot by 2.8−3.8 order of magnitude and low detection limit by 2−3 order of magnitude in the series of QAS: TOD≤TC<TL<TNODA<TB<TE<TM< DCPBTM. Also, the increase in low detection limit by 1−0.7 order of magnitude in the series of plasticizers: DBP>DDP>o-NPDE>1-BN was established. The composition of membranes of ion-selective electrodes was optimized.

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Published
2018-06-07
How to Cite
Rakhman’ko, E., & Matveiychuk, Y. (2018). EFFECT OF STERIC ACCESSIBILITY OF EXCHANGE CENTER OF HIGHER QUATERNARY AMMONIUM SALTS AND PLASTICIZER NATURE ON CHARACTERISTICS OF ELECTRODES, REVERSIBLE TO DOUBLE-CHARGED ANIONS. ChemChemTech, 59(1), 9-13. https://doi.org/10.6060/tcct.20165901.5160
Section
CHEMISTRY (inorganic, organic, analytical, physical, colloid and high-molecular compounds)