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Separation and Determination of Monovalent and Divalent Cations by the Facile Propylsulfonic Acid Functionalized Silica Stationary Phase

Author:
Qiu, Hongdeng, Sun, Min, Niu, Jingang, Liu, Xia, Jiang, Shengxiang
Source:
Chromatographia 2010 v.71 no.5-6 pp. 355-359
ISSN:
0009-5893
Subject:
X-ray photoelectron spectroscopy, calcium, cation exchange, cations, chromatography, magnesium, oxidation, silica, sodium, tap water
Abstract:
A facile strong cation-exchange stationary phase based on propylsulfonic acid functionalized silica was prepared through the oxidation in situ of 3-mercaptopropyl silica and characterized by elemental analysis and X-ray photoelectron spectroscopy. The phase was used to separate monovalent and divalent inorganic cations with strong acid as mobile phase. Simultaneous separation of alkali metals and alkaline earth metals was examined and the cations sodium, magnesium and calcium in tap water were determined.
Agid:
2237346