A novel hydrophilic polymer-based anion exchanger grafted by quaternized polyethyleneimine for ion chromatography.
Anion exchanger
Hydrophilic polymer
Ion chromatography
Poly (glycidylmethacrylate-divinylbenzene)
Polyethylenimine
Journal
Talanta
ISSN: 1873-3573
Titre abrégé: Talanta
Pays: Netherlands
ID NLM: 2984816R
Informations de publication
Date de publication:
15 May 2019
15 May 2019
Historique:
received:
16
11
2018
revised:
02
01
2019
accepted:
05
01
2019
entrez:
18
2
2019
pubmed:
18
2
2019
medline:
18
2
2019
Statut:
ppublish
Résumé
A novel hydrophilic polymer-based anion exchanger has been described for ion chromatography (IC). It is prepared by grafting polyethyleneimine (PEI) onto the poly(glycidylmethacrylate-divinylbenzene) (GMA-DVB) substrate, followed by hydrolytic treatment to convert the residual epoxide groups onto the surface of GMA-DVB substrates to hydroxyl groups, finally quaternized PEI by a molecule containing epoxide group. Hydrophobic surface of GMA-DVB substrate can be converted to hydrophilic, aiming to reduce unwanted non-ionic interaction from the substrate. After optimizing the reaction conditions, the obtained anion exchanger showed good separation towards standard inorganic anions under the suppressed mode and complete elution of seven common inorganic anions could be achieved in less than 16 min by using potassium bicarbonate eluent. It also demonstrated fast dynamic kinetic and enabled the separation of 7 anions within 3 min at the isocratic mode. Column efficiency of the anion exchanger was up to 34,000 /m.
Identifiants
pubmed: 30771923
pii: S0039-9140(19)30022-0
doi: 10.1016/j.talanta.2019.01.024
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
199-203Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.