O'Connell, M. P.,Treacy, J.,Merly, C.,Smith, C. M. M.,Glennon, J. D.;

1999

Analytical Letters

Selective preconcentration and ion chromatography of trace lead(II) in environmental samples using a porous graphitic carbon column. Analytical Letters

Validated

()

32

1

185

192

Highly selective ion analysis of sub-ppm Pb(II) on a porous graphitic carbon (PGC) column, is described using ion chromatography with acidified aqueous mobile phases, post-column detection using PAR and spectrophotometric detection. Sensitivity is enhanced by on-line preconcentration of the metal prior to the chromatography using one millilitre injection volumes applied to a calix[4]arene-tetrahydroxamate based chelating precolumn. The method is applied to water samples collected from a river subjected to an industrial effluent discharge and results obtained compare favourably with those obtained using flame atomic absorption spectroscopy.

0003-2719

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