Citation: Ren Qing Zhang, Hong Yu, Xiao Jiao Sun. Separation and determination of pyrrolidinium ionic liquid cations by ion chromatography with direct conductivity detection[J]. Chinese Chemical Letters, ;2013, 24(6): 503-505. shu

Separation and determination of pyrrolidinium ionic liquid cations by ion chromatography with direct conductivity detection

1.
Key Laboratory of Photonic and Electronic Bandgap Materials, Ministry of Education and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China

Corresponding author: Hong Yu,
Received Date: 8 November 2012
Available Online: 27 February 2013

A method for rapid and simultaneous determination of multiple pyrrolidinium ionic liquid cations by ion chromatography with direct conductivity detection was developed. Chromatographic separations were performed on a cation exchange column using ethylenediamine-acetonitrile as the mobile phase. The effects of chromatographic column and the mobile phase, as well as the column temperature on the retention of the cations were investigated. The retention rules of the cations under different chromatographic conditions were formulated. The retention of the cations followed the carbon number rule. Themethod has been successfully applied to the determination of three ionic liquids synthesized by a chemical laboratory.
- Ionic liquids,
- Pyrrolidinium cations,
- Ion chromatography,
- Conductivity detection,
- Retention rules
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1.
沈阳化工大学材料科学与工程学院沈阳 110142