Solid phase extraction and preconcentration of some metal ions using Schiff base immobilised silica gel followed by ICP-OES

In this study, a simple and efficient solid phase extraction procedure was developed for simultaneous separation and preconcentration of Ba, Cd, Co, Cu, Mn and Ni. The methodology was based on preconcentration of the target analytes on N,N'-bis(4-methoxysalicylidene)-1,3-propanediamine modified...

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Bibliographic Details
Published inInternational journal of environmental analytical chemistry Vol. 99; no. 15; pp. 1528 - 1539
Main Authors Tokay, Feyzullah, Bağdat, Sema
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 08.12.2019
Taylor & Francis LLC
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Summary:In this study, a simple and efficient solid phase extraction procedure was developed for simultaneous separation and preconcentration of Ba, Cd, Co, Cu, Mn and Ni. The methodology was based on preconcentration of the target analytes on N,N'-bis(4-methoxysalicylidene)-1,3-propanediamine modified silica gel prior to inductively coupled plasma optic emission spectrometry detection. The experimental conditions were as follows: pH of sample 5.00; sample and eluent flow rates 3 mL min −1 ; sample volume 25 mL; eluent 0.5 mol L −1 HNO 3 ; eluent volume 3.0 mL. Preconcentration factor was achieved as 33.3 for Ba, Co, Mn; 83.3 for Cd, Ni; 166.7 for Cu. Limits of detection were found as 0.33, 0.26, 0.27, 0.36, 0.27 and 0.19 µg L −1 for Ba, Cd, Co, Cu, Mn and Ni, respectively. The relative standard deviations of 2.6-3.8% were obtained via nine parallel analyses. The suggested procedure was successfully validated by the analysis of TMDA-53.3 Lake Ontario water and ERM-CA022a soft drinking water certified reference materials and applied to various natural water samples.
ISSN:0306-7319
1029-0397
DOI:10.1080/03067319.2019.1625341