Dispersive liquid-liquid microextraction for the simultaneous separation of trace amounts of zinc and cadmium ions in water samples prior to flame atomic absorption spectrometry determination

Química Nova

Sayed Zia Mohammadi²  Yar Mohammad Baghelani²  Fatemeh Mansori²  Tayebeh Shamspur¹  Daryoush Afzali¹ 

[1] ,Payame Noor University Department of Chemistry Bam,Iran

关键词: dispersive liquid-liquid microextraction;    cadmium determination;    zinc determination;   

DOI  :  10.1590/S0100-40422012000100034

来源: SciELO

【 摘 要 】

In the proposed method, carbon tetrachloride and ethanol were used as extraction and dispersive solvents. Several factors that may be affected on the extraction process, such as extraction solvent, disperser solvent, the volume of extraction and disperser solvent, pH of the aqueous solution and extraction time were optimized. Under the optimal conditions, linearity was maintained between 1.0 ng mL-1 to 1.5 mg mL-1 for zinc and 1.0 ng mL-1 to 0.4 mg mL-1 for cadmium. The proposed method has been applied for determination of trace amount of zinc and cadmium in standard and water samples with satisfactory results.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License