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

Quimica nova

Kiasat, Ali Reza¹  Abdollahzadeh, Rezvan¹  Pourreza, Nahid¹  Mirzajani, Roya¹ 

[1] Shahid Chamran University, Ahvaz, Iran

关键词: Cu(II);    Cd(II);    Mn(II).;   

DOI  :  10.1590/S0100-40422012001000011

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A simultaneoussolid 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) andMn(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 calibrationgraph was linear in the range of 2-140 ng mL-1 for Cu(II), 1-40 ngmL-1 for Cd(II) and 4-100 ng mL-1 for Mn(II). The limitsof 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