Preconcentration and inductively coupled plasma atomic emission spectrometric determination of metal ions with on-line chelating ion exchange
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 7 (1) , 19-22
- https://doi.org/10.1039/ja9920700019
Abstract
An on-line preconcentration method utilizing a microcolumn of XAD-2 resin functionalized with 1-(2-thiazolylazo)-2-naphthol has been developed. Preconcentration factors of 125 were easily obtained for injection times of 5 min. The detection limit ranged between 2 ng l–1 for Mn and 40 ng l–1 for Ni. The resin has been used to preconcentrate Cd, Cu, Fe, Mn, Ni and Zn from river water and Antarctic sea-water (Ross Bay) prior to their determination by inductively coupled plasma atomic emission spectrometry. The precision of the technique is around 10% relative standard deviation at concentrations below the µg l–1 level and 5% for higher concentrations.Keywords
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