Preparation of a polymer-based weak cation exchanger for ion chromatography via atom transfer radical polymerization.
J Chromatogr A
; 1648: 462187, 2021 Jul 05.
Article
in En
| MEDLINE
| ID: mdl-33975083
ABSTRACT
A novel polymer-based weak cation exchanger (WCX) for ion chromatography has been described. It was prepared by grafting tert-butyl acrylate and maleic anhydride onto the surface of poly(glycidyl methacrylate-divinylbenzene) microspheres via atom transfer radical polymerization, followed by hydrolytic treatment to produce acrylic and maleic acid groups. The obtained WCX showed better separation and higher selectivity for model cations relative to solely acrylic or maleic acid. Simultaneous separation of alkali and alkaline earth cations (including NH4+) was achieved in a single isocratic run under suppressed mode, and ion exchange was found to dominate the separation process. Its utility was demonstrated for determination of several cations in a beer sample and the recovery was ranging from 98.4 to 109.9%.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polymers
/
Cation Exchange Resins
/
Chromatography, Ion Exchange
Language:
En
Journal:
J Chromatogr A
Year:
2021
Document type:
Article
Affiliation country:
China