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Online comprehensive two-dimensional ion chromatography × capillary electrophoresis
Citation
Ranjbar, L and Gaudry, AJ and Breadmore, MC and Shellie, RA, Online comprehensive two-dimensional ion chromatography capillary electrophoresis, Analytical Chemistry, 87, (17) pp. 8673-8678. ISSN 0003-2700 (2015) [Refereed Article]
Copyright Statement
© 2015 American Chemical Society
DOI: doi:10.1021/acs.analchem.5b01130
Abstract
A comprehensively coupled online two-dimensional ion chromatography-capillary electrophoresis (IC × CE) system for quantitative analysis of inorganic anions and organic acids in water is introduced. The system employs an in-house built sequential injection-capillary electrophoresis instrument and a nonfocusing modulation interface comprising a tee-piece and a six-port two-position injection valve that allows comprehensive sampling of the IC effluent. High field strength (+2 kV/cm) enables rapid second-dimension separations in which each peak eluted from the first-dimension separation column is analyzed at least three times in the second dimension. The IC × CE approach has been successfully used to resolve a suite of haloacetic acids, dalapon, and common inorganic anions. Two-dimensional peak capacity for IC × CE was 498 with a peak production rate of 9 peaks/min. Linear calibration curves were obtained for all analytes from 5 to 225 ng/mL (except dibromoacetic acid (10–225 ng/mL) and tribromoacetic acid (25–225 ng/mL)). The developed approach was used to analyze a spiked tap water sample, with good measured recoveries (69–119%).
Item Details
Item Type: | Refereed Article |
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Keywords: | comprehensive LC CE, electrophoresis |
Research Division: | Chemical Sciences |
Research Group: | Analytical chemistry |
Research Field: | Separation science |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the chemical sciences |
UTAS Author: | Ranjbar, L (Ms Leila Ranjbar Shourabi) |
UTAS Author: | Gaudry, AJ (Mr Adam Gaudry) |
UTAS Author: | Breadmore, MC (Professor Michael Breadmore) |
UTAS Author: | Shellie, RA (Associate Professor Robert Shellie) |
ID Code: | 106969 |
Year Published: | 2015 |
Funding Support: | Australian Research Council (FT130100101) |
Web of Science® Times Cited: | 8 |
Deposited By: | Chemistry |
Deposited On: | 2016-02-28 |
Last Modified: | 2018-03-16 |
Downloads: | 0 |
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