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

Quimica nova

Afzali, Daryoush²  Baghelani, Yar Mohammad³  Mohammadi, Sayed Zia³  Mansori, Fatemeh³  Shamspur, Tayebeh⁴ 

[1] Environmental Sciences, Kerman, Iran;International Center for Science, High Technology &Payame Noor University, Bam, Iran;Shahid Bahonar University of Kerman, Kerman, Iran;amp

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

DOI  :  10.1590/S0100-40422012000100034

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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