Cationic surfactant-selective electrode based on a hydrophobic cation exchanger

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A cationic surfactant- selective electrode for sensitive analysis of cationic surfactants has been developed by using a plasticized poly (vinyl chloride) membrane based on a hydrophobic cation exchanger, sodium tetrakis (3,5-bis(trifluoromethyl)phenyl) borate. The electrode shows a Nernstian response to dodecyltrimethylammonium (DTA) ion in the concentration range from 8 x 10-7M to 10-2M with a slope of 55.3 ± 2.0 mV/decade. The electrode was used over a wide pH range of pH 2-12. The electrode is excellently selective for the DTA ion over inorganic anions, but interferences of other cationic surfactants such as cetylpyridinium ion and tetradecyldimethylbenzylammonium ion (zephiramine) are great. The present electrode was applied to determine total cationic surfactants in commercial disinfectants.

Original languageEnglish
Pages (from-to)227-231
Number of pages5
JournalMikrochimica Acta
Volume140
Issue number3-4
DOIs
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

Cationic surfactants
Cations
Electrodes
Ions
Cetylpyridinium
Vinyl Chloride
Disinfectants
Anions
Sodium
Membranes
dodecyltrimethylammonium

Keywords

  • Cationexchanger
  • Cationic surfactant-selective electrode
  • Determination of the disinfectants
  • Dodecyltrimethylammonium ion
  • Sodium tetrakis (3,5-bis(trifluoromethyl)phenyl) borate
  • Zephiramine

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Cationic surfactant-selective electrode based on a hydrophobic cation exchanger. / Masadome, Takashi.

In: Mikrochimica Acta, Vol. 140, No. 3-4, 2002, p. 227-231.

Research output: Contribution to journalArticle

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