Determination of Palladium by Graphite Furnace Atomic Absorption Spectrometry After Preconcentration with MCI GEL CHP 20P Resin as Sorbent

Abstract

A solid phase extraction and graphite furnace atomic absorption spectrometry for the determination of palladium with MCI GEL CHP 20P resin as sorbent was studied. Trace amounts of palladium was reacted with 2-ethylhexyl octyl sulfide followed by adsorption onto MCI GEL CHP 20P solid phase extraction column, and ethanol was used as eluent. The enrichment factor of this method for palladium was reached at 250. The detection limit in the original sample for palladium was found to be 0.0048 ng mL⁻¹. The proposed method has been successfully applied to the determination of trace amounts of palladium in different samples.

Keywords:

• 2-Ethylhexyl octyl sulfide
• Graphite furnace atomic absorption spectrometry
• MCI GEL CHP 20P
• Palladium
• Solid phase extraction

This work was supported by the National Natural Science Foundation of China (50764008) and the National High Technology Research and Development Program of China (863 Program, No. 2006AA06Z127).

Notes

^a In the preconcentrated solution.

^b In the original samples before applying the preconcentration procedure.

^–, Not determined; BDL, below the detection limit.

^a Mean ± S.D.