Issue 12, 2001

Cationic diazacrown ethers as selectors for the separation of inorganic anions by capillary electrophoresis

Abstract

Two types of positively charged diazacrown ether derivatives involving two quaternary ammonium ions in the 12- and 18-membered rings have been investigated as selectors for the separation of inorganic anions by capillary electrophoresis. Both the cationic macrocycles largely affected the electrophoretic mobilities of analyte anions, and a group of seven inorganic anions examined in this study was completely separated in less than 2.2 min by the use of the low concentration of the additives. From the determination of ion association constants, the cationic diazacrowns were found to show greater electrostatic interaction with divalent anions than with monovalent ones.

Article information

Article type
Communication
Submitted
10 Sep 2001
Accepted
23 Oct 2001
First published
09 Nov 2001

Analyst, 2001,126, 2110-2112

Cationic diazacrown ethers as selectors for the separation of inorganic anions by capillary electrophoresis

M. Mori, H. Tsue and S. Tanaka, Analyst, 2001, 126, 2110 DOI: 10.1039/B108183G

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