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Journal of Analytical Chemistry

, Volume 74, Issue 6, pp 591–600 | Cite as

Ion-Selective Electrodes Based on Polyvinyl Chloride Modified by p-(Trifluoroacetyl)Benzoate Groups

  • Yu. V. MatveichukEmail author
  • E. M. Rakhman’ko
ARTICLES
  • 30 Downloads

Abstracts

Ion-selective electrodes (ISEs), reversible to hydrophilic sulfate, hydrophosphate, and sulfide ions, are developed based on modified polyvinyl chloride (MPVC), combining the functions of a polymer matrix and a neutral carrier. A procedure for the synthesis of MPVC is described, which consists in grafting p-(trifluoroacetyl)benzoate groups to PVC. Previously, ISEs of this type contained PVC as a basis and p-(trifluoroacetyl)benzoic acid heptyl ester (p-TFABAHE). The use of MPVC significantly increases the lifetime of these ISEs by preventing changes associated both with the dissolution of p-TFABAHE (for Open image in new window -SE and S2–-SE, working in alkaline media) and with the crystallization of the hydrate form of p-TFABAHE on the surface of the Open image in new window -SE membranes working in acidic media.

Keywords:

modified polyvinyl chloride p-(trifluoroacetyl)benzoate groups ion-selective electrodes 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Department of Chemistry, Belarusian State UniversityMinskBelarus

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