Simultaneous preconcentration of Cu(II), Cd(II) and Mn(II) on silica-polyethylene glycol and determination by flame atomic absorption spectrometry

Química Nova

Nahid Pourreza¹  Roya Mirzajani¹  Ali Reza Kiasat¹  Rezvan Abdollahzadeh¹ 

[1] ,Shahid Chamran University College of Science Department of ChemistryAhvaz,Iran

关键词: Cu(II);    Cd(II);    Mn(II);   

DOI  :  10.1590/S0100-40422012001000011

来源: SciELO

【 摘 要 】

A simultaneous solid phase extraction procedure for enrichment of Cu(II), Cd(II) and Mn(II) has been developed. The method is based on adsorption of Cu(II), Cd(II) and Mn(II) ions on polyethylene glycol-silica gel pre-conditioned with acetate buffer (pH 5.5). The adsorbed metal ions are eluted with nitric acid (1 mol L -1) and determined by flame atomic absorption spectrometry. The calibration graph was linear in the range of 2-140 ng mL-1 for Cu(II), 1-40 ng mL-1 for Cd(II) and 4-100 ng mL-1 for Mn(II). The limits of detection were 0.66, 0.33 and 1.20 ng mL-1 for Cu(II), Cd(II) and Mn(II), respectively.

【 授权许可】

CC BY-NC   
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