eCite Digital Repository

Determination of calcium and magnesium in sea-water using a dynamically coated porous graphitic carbon column with a selective metallochromic ligand as a component of the mobile phase

Citation

Paull, B and Fagan, PA and Haddad, PR, Determination of calcium and magnesium in sea-water using a dynamically coated porous graphitic carbon column with a selective metallochromic ligand as a component of the mobile phase, Analytical Communications, 33, (6) pp. 193-196. ISSN 1359-7337 (1996) [Refereed Article]


Preview
PDF
Restricted - Request a copy
724Kb
  

Copyright Statement

Copyright 1996 Royal Society of Chemistry

Official URL: http://www.rsc.org

DOI: doi:10.1039/AC9963300193

Abstract

A simple liquid chromatographic procedure for the separation and detection of magnesium and calcium in saline samples has been developed. A selective colour-forming metallochromic ligand, o-cresolphthalein complexone, was used both to dynamically coat a pH tolerant porous graphitic carbon reverse phase column and also as a component of the mobile phase. The metals were separated by a chelating ion exchange mechanism at pH 10.5 and eluted as coloured chelates, which were detected using direct spectrophotometry at 572 nm. The procedure was applied to the determination of magnesium and calcium in a sea-water sample and the results compared to those obtained using AAS.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Instrumental Methods (excl. Immunological and Bioassay Methods)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Paull, B (Professor Brett Paull)
Author:Fagan, PA (Mr Peter Fagan)
Author:Haddad, PR (Professor Paul Haddad)
ID Code:9010
Year Published:1996
Web of Science® Times Cited:21
Deposited By:Chemistry
Deposited On:1996-08-01
Last Modified:2010-03-05
Downloads:0

Repository Staff Only: item control page