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 Antaretic 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 mu-g l-1 level and 5% for higher concentrations.

Preconcentration and inductively coupled plasma atomic emission spectrometric determination of metal ions with on-line chelating ion-exchange

PORTA, Valerio;SARZANINI, Corrado;ABOLLINO, Ornella;MENTASTI, Edoardo;
1992-01-01

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 Antaretic 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 mu-g l-1 level and 5% for higher concentrations.
1992
7
19
22
Sea-water; online enrichment; chelating resin; inductively coupled plasma atomic emission spectrometry; preconcentration
V. Porta; C. Sarzanini; O. Abollino; E. Mentasti; E. Carlini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/112614
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