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High-speed simultaneous ion-exclusion/cation-exchange chromatography of anions and cations on a weakly acidic cation-exchange resin column
journal contribution
posted on 2023-05-16, 14:21 authored by Mori, M, Tanaka, K, Helaleh, MIH, Xu, Q, Ikedo, M, Ogura, Y, Sato, S, Hu, W, Hasebe, K, Paul HaddadPaul HaddadThe simultaneous ion-exclusion/cation-exchange separation column packed with a polymethacrylate-based weakly acidic cation-exchange resin of 3 μm particle size was used to achieve the simultaneous high-speed separation of anions and cations (Cl−, NO3−, SO42−, Na+, K+, NH4+, Ca2+ and Mg2+) commonly found in environmental samples. The high-speed simultaneous separation is based on a combination of the ion-exclusion mechanism for the anions and the cation-exchange mechanism for cations. The complete separation of the anions and cations was achieved in 5 min by elution with 15 mM tartaric acid–2.5 mM 18-crown-6 at a flow-rate of 1.5 ml/min. Detection limits at S/N=3 ranged from 0.36 to 0.68 μM for anions and 0.63–0.99 μM for cations. This method has been applied to the simultaneous determination of anions and cations in several environmental waters with satisfactory results.
History
Publication title
Journal of Chromatography AVolume
997Issue
1-2Pagination
219-224ISSN
0021-9673Department/School
School of Natural SciencesPublisher
Elsevier Science BVPlace of publication
Amsterdam, NetherlandsRights statement
The definitive version is available at http://www.sciencedirect.comRepository Status
- Restricted