The Solid Phase Extraction of Some Metal Ions Using Palladium Nanoparticles Attached to Silica Gel Chemically Bonded by Silica-Bonded N-Propylmorpholine as New Sorbent prior to Their Determination by Flame Atomic Absorption Spectroscopy

<table>Preparation of PNP-SBNPM catalyst. (a) (3-chloropropyl) trimethoxysilane, toluene, reflux, 18 h. (b) Morpholine, CHCl<sub>3</sub>, Et<sub>3</sub>N, 8 h. (c) Pd(OAC)<sub>2</sub>, ethanol, r.t, 12 h. (d) Washing with ethanol. (e) Washing with ether.</table>

The Scientific World Journal

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Figure 1

Figure 1: The Solid Phase Extraction of Some Metal Ions Using Palladium Nanoparticles Attached to Silica Gel Chemically Bonded by Silica-Bonded N-Propylmorpholine as New Sorbent prior to Their Determination by Flame Atomic Absorption Spectroscopy 

Figure 1 | The Solid Phase Extraction of Some Metal Ions Using Palladium Nanoparticles Attached to Silica Gel Chemically Bonded by Silica-Bonded N-Propylmorpholine as New Sorbent prior to Their Determination by Flame Atomic Absorption Spectroscopy 