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Simultaneous Determination of Inorganic Anions, Calcium and Magnesium by Suppressed Ion Chromatography by Ruben Garcı́a-Fernández; J.Ignacio Garcı́a-Alonso; Alfredo Sanz-Medel is a Chemistry article available to read on EtoBox.

What is Simultaneous Determination of Inorganic Anions, Calcium and Magnesium by Suppressed Ion Chromatography about?

Suppressed conductimetric detection ion chromatography (IC) was investigated for the separation and detection of common inorganic anions, calcium and magnesium by anion-exchange chromatography using a sodium carbonate-EDTA mobile phase. The formation of anionic Ca 2+ -EDTA and Mg 2+ -EDTA complexes allowed its separation from other inorganic anions opening the way for their simultaneous determination in a single chromatographic run. The effect of the pH, carbonate and EDTA concentrations in the eluent and the previous addition of EDTA to the samples has been studied. The optimised experimental conditions were applied to the determination of Ca 2+ and Mg 2+ in mineral waters with results in agreement with alternative ICP-MS methodologies.

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Author

Ruben Garcı́a-Fernández; J.Ignacio Garcı́a-Alonso; Alfredo Sanz-Medel

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)

Published

2004

Language

EN

Field

Chemistry (Physical Sciences)