Determination of Imidazolium Ionic Liquid Cations by Ion-Pair Chromatography Using a Monolithic Column and Direct Conductivity Detection

被引：16

作者：

Gao, Wei ^{[1
]}

Yu, Hong ^{[1
]}

Zhou, Shuang ^{[1
]}

机构：

[1] Harbin Normal Univ, Coll Chem & Chem Engn, Harbin 150025, Peoples R China

来源：

CHROMATOGRAPHIA | 2010年 / 71卷 / 5-6期

关键词：

Ion-pair chromatography; Conductivity detection; Ionic liquids; Monolithic column; Imidazolium cations; STATIONARY PHASES; CAPILLARY ELECTROCHROMATOGRAPHY; INORGANIC ANIONS; SEPARATION; HPLC; TETRAFLUOROBORATE; HALIDE;

D O I：

10.1365/s10337-010-1478-0

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Determination of four imidazolium ionic liquid cations by ion-pair chromatography was carried out using direct conductivity detection. Chromatographic separations were performed on a silica-based monolithic column with 1-heptanesulfonic acid sodium + acetonitrile + citric acid as eluent. Carbon number rule and influence of acetonitrile on the retention of imidazolium cations were discussed. Detection limits (S/N = 3) for the cations were 2.1-55.9 mg L-1. Relative standard deviations (RSD, n = 5) for peak areas were less than 3.0%. The method has been successfully applied to the determination of two ionic liquids synthesized by organic chemistry lab.

引用

页码：475 / 479

页数：5

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