Cationic surfactant-selective electrode based on a hydrophobic cation exchanger

Takashi Masadome

doi:10.1007/s00604-002-0916-6

Cationic surfactant-selective electrode based on a hydrophobic cation exchanger

Takashi Masadome

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	227-231
Number of pages	5
Journal	Mikrochimica Acta
Volume	140
Issue number	3-4
DOIs	https://doi.org/10.1007/s00604-002-0916-6
Publication status	Published - 2002 Jan 1

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

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Masadome, T. (2002). Cationic surfactant-selective electrode based on a hydrophobic cation exchanger. Mikrochimica Acta, 140(3-4), 227-231. https://doi.org/10.1007/s00604-002-0916-6

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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.",

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