Removal of lead (II) using modified octadecyl silica nanomagnetic disks with dioctyl phthalate by atomic absorption spectroscopy

Document Type : Original Article

Authors

• ali moghimi ¹
• Milad Abniki ²
• Mahnaz Qomi ³

¹ Associated professor analytical chemistry Department of Chemistry, Varamin( Pishva )Branch Islamic Azad University, Varamin, Iran

² Department of Chemistry, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran

³ Department of Chemistry, Islamic Azad University, Tehran Medical Branch, Tehran, Iran

Abstract

In this study, a fast and easy process to remove and quantify lead (II) ions using octadecyl silica nanomagnetic disks modified by iron oxide nanoparticles with dioctyl phthalate and magnetized. In this study, a fast and easy process for the removal and quantification of lead (II) ions using octadecyl silica nanomagnetic disks modified by iron oxide nanoparticles with dioctyl phthalate and magnetized. In this study, the effects of interfering ions, pH, ligand content, suitable washing solvent, and sample flow rate have been studied. After performing optimization factors for adsorption, the volume of solvent up to about 900 ml was obtained. The maximum adsorption capacity for the studied adsorbent for the adsorption of lead (II) ions was 370 μg. The detection limit for procedure is acceptable with an acceptable value for lead (II) ions. This method was used to extract and recover lead (II) in different aqueous samples.

Keywords

• Preconcentration of heavy metals
• Extraction
• Nanomagnetic disks
• Interference ion effects

---