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Flow gradient liquid chromatography using a coated anion exchange microcolumn
Citation
Nesterenko, EP and Barron, LP and Nesterenko, PN and Paull, B, Flow gradient liquid chromatography using a coated anion exchange microcolumn, Journal of Separation Science, 29, (2) pp. 228-235. ISSN 1615-9306 (2006) [Refereed Article]
DOI: doi:10.1002/jssc.200500335
Abstract
Ion chromatography on a 4.0-mm-long (3.0 min ID) ion exchange column is presented. Using a 10 mM phosphate buffer (pH 2.22) the separation of up to six UV-absorbing anions was obtained using the microcolumn, containing 5 μm RP support (Phenomenex Gemini) coated with the zwitterionic surfactant, (N-dodecyl-N,N-dimethyl-ammonio) undecanoate. The short analytical column facilitated the application of a flow gradient programme over the flow range 0.3-5 mL/min resulting in optimum resolution of nitrite, nitrate, benzoate, iodide, thiocyanate and trichloroacetate in less than 10 min. The effect of both eluent concentration and pH on the retention of six selected anions was investigated, showing a strong pH capacity dependence. The microcolumn was found to exhibit no selectivity towards chloride and so was well suited to the analysis of saline samples. To illustrate this, the rapid analysis of a concentrated iodized table salt sample (20 g/L) was carried out. Following standard addition, a concentration of 3.55 ± 0.05 μg iodide/g and 1.05 ± 0.02 μg iodate/g in the solid salt sample was determined. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Item Details
Item Type: | Refereed Article |
---|---|
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: | Nesterenko, PN (Professor Pavel Nesterenko) |
UTAS Author: | Paull, B (Professor Brett Paull) |
ID Code: | 47747 |
Year Published: | 2006 |
Web of Science® Times Cited: | 10 |
Deposited By: | Chemistry |
Deposited On: | 2007-09-20 |
Last Modified: | 2011-08-18 |
Downloads: | 0 |
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