Development of an analytical method for the determination of hexavalent chromium in water samples based on liquid-liquid microextraction with detection by flame atomic absorption spectrometry

Quimica nova

Dutra, Joyce Nunes Bianchin¹  Mior, Renata¹  Carasek, Eduardo¹  Martendal, Edmar² 

[1] Universidade Federal de Santa Catarina, Florianópolis, Brasil;Universidade do Estado de Santa Catarina, Joinville, Brasil

关键词: hexavalent chromium;    liquid-liquid microextraction;    F AAS.;   

DOI  :  10.1590/S0100-40422013000700004

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this study,a method for determination of hexavalent chromium in aqueous samples using liquid-liquidmicroextraction (LLME) and detection by Flame Atomic Absorption Spectrometry(F AAS) was developed. The LLME procedure was based on the extraction ofCr (VI) by acetone at a sample pH of 1.2. The use of saturated ammonium sulphatesolution allowed effective separation of the aqueous and organic phases andacetone extracted chromium. The sample pH, acetone volume and stirring timewere optimized by a full factorial design.

【 授权许可】

CC BY