eCite Digital Repository

Novel stationary phase with regulated anion exchange capacity


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


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:26
Deposited By:Chemistry
Deposited On:2007-09-14
Last Modified:2011-10-24

Repository Staff Only: item control page