Migration behavior of inorganic anions in micellar electrokinetic capillary chromatography using a cationic surfactant

Takashi Kaneta, Shunitz Tanaka, Mitsuhiko Taga, Hitoshi Yoshida

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

The interactions between inorganic anions and a cationic surfactant were investigated using micellar electrokinetic capillary chromatography (MECC). Using cetyltrimethylammonium chloride (CTAC) as a cationic surfactant, the effective electrophoretic mobilities of inorganic anions decreased due to two processes. The first was the ion association equilibria with a monomeric surfactant below the critical micellar concentration (cmc) and the other was partitioning into the micelle above the cmc. Fundamental equations for migration of ionic species in MECC were derived using the effective electrophoretic mobility as an electrochemical parameter. Ion association constants of inorganic anions with cationic surfactant and distribution coefficients into the micelle were estimated on the basis of these equations.

Original languageEnglish
Pages (from-to)798-801
Number of pages4
JournalAnalytical Chemistry
Volume64
Issue number7
Publication statusPublished - Apr 1 1992
Externally publishedYes

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Cationic surfactants
Chromatography
Anions
Electrophoretic mobility
Micelles
Association reactions
Ions
Surface-Active Agents

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Migration behavior of inorganic anions in micellar electrokinetic capillary chromatography using a cationic surfactant. / Kaneta, Takashi; Tanaka, Shunitz; Taga, Mitsuhiko; Yoshida, Hitoshi.

In: Analytical Chemistry, Vol. 64, No. 7, 01.04.1992, p. 798-801.

Research output: Contribution to journalArticle

Kaneta, Takashi ; Tanaka, Shunitz ; Taga, Mitsuhiko ; Yoshida, Hitoshi. / Migration behavior of inorganic anions in micellar electrokinetic capillary chromatography using a cationic surfactant. In: Analytical Chemistry. 1992 ; Vol. 64, No. 7. pp. 798-801.
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