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Novel stationary phase with regulated anion exchange capacity
Citation
Kiseleva, MG and Nesterenko, PN, Novel stationary phase with regulated anion exchange capacity, Journal of Chromatography A, 920, (1-2) pp. 87-93. ISSN 0021-9673 (2001) [Refereed Article]
DOI: doi:10.1016/S0021-9673(01)00694-X
Abstract
A novel stationary phase - phenylaminopropyl (PLA) bonded silica - is proposed for anion-exchange chromatography. Low basicity (pKa about 2.5) attached to silica phenylaminopropyl groups allows a variation of surface density of protonated sites in the pH range from 2 to 5. This enables us to use the same column for the separation of anions having different affinity to anion-exchangers. The effect of mobile phase pH on conditional capacity of PhA-silica was studied. The hypothesis on dependence of ion-exchange selectivity on the column capacity is discussed. Suitability of PhA-silica for ion-chromatographic separation of organic and inorganic anions at different pH values of eluent was demonstrated. © 2001 Elsevier Science B.V.
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) |
| ID Code: | 47385 |
| Year Published: | 2001 |
| Web of Science® Times Cited: | 23 |
| Deposited By: | Chemistry |
| Deposited On: | 2007-09-14 |
| Last Modified: | 2011-10-24 |
| Downloads: | 0 |
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