Selective Preconcentration and Ion Chromatography of Trace Lead(II) in Environmental Samples Using a Porous Graphitic Carbon Column
作者:
Mark P. O'Connell,
Josephine Treacy,
Corinne Merly,
Clare M.M. Smith,
Jeremy D. Glennon,
期刊:
Analytical Letters
(Taylor Available online 1999)
卷期:
Volume 32,
issue 1
页码: 185-192
ISSN:0003-2719
年代: 1999
DOI:10.1080/00032719908542607
出版商: Taylor & Francis Group
关键词: Porous Graphitic Carbon;Ion Chromatography;Metal Preconcentration;Lead(II)
数据来源: Taylor
摘要:
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.
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