Simultaneous Preconcentration of Trace Metals in Environmental Samples Using Amberlite XAD-2010/8-Hydroxyquinoline System

Ali Gundogdu1, Celal Duran1, H. Basri Senturk1, Latif Elci2 and Mustafa Soylak3*

1 Department of Chemistry, Faculty of Art and Science, Karadeniz Technical University, 61080, Trabzon–Türkiye
2 Department of Chemistry, Faculty of Art and Science, Pamukkale University, 20020 Denizli–Türkiye
3 Department of Chemistry, Faculty of Art and Science, Erciyes University, 38039 Kayseri–Türkiye
Tel/fax: +90 352 4374933,

A simple and sensitive system for simultaneous preconcentration of Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Pb(II)
and Cd(II) at trace level by flame atomic absorption spectrometry (FAAS) is proposed. Amberlite XAD-2010 packed in
a column was used as sorbent. Analyte ions were sorbed in the column as their 8-hydroxyquinoline chelates; they could
then be eluted by 1 mol L–1 HNO3 in acetone. The analytical conditions including pH, amounts of 8-hydroxyquinoline,
sample volume etc. on the quantitative recoveries of the analytes were investigated. The effects of the concomitants ions
on the recoveries of the analytes column were also studied. The detection limits, corresponding to three times the standard
deviation of the blank, were found to be in the range of 0.10-0.40 µg L–1. The accuracy of the procedure was measured
by analyte determinations in certified reference materials (CRM NIES No. 7 Tea Leaves and TMDW-500 Drinking
Water). The applications of the presented system were performed by the analysis of some environmental samples including
water samples.

Keywords: Amberlite XAD-2010, solid phase extraction, preconcentration, FAAS