Spectrophotometric determination of Sudan Blue II in environmental samples after dispersive liquid-liquid microextraction

Química Nova

Yunus Emre Unsal²  Mustafa Tuzen²  Mustafa Soylak¹ 

[1] ,Gaziosmanpasa University Faculty of Science and Arts Chemistry DepartmentTokat,Turkey

关键词: microextraction;    spectrophotometry;    Sudan Blue II;    food;    industrial waste-water samples;   

DOI  :  10.5935/0100-4042.20140192

来源: SciELO

【 摘 要 】

A dispersive liquid-liquid microextraction procedure coupled to spectrophotometry is described for the determination of the trace levels of Sudan Blue II. Analytical parameters, such as pH, volume of extraction solvent (carbon tetrachloride), volume of dispersant (ethanol), volume of sample, and extraction time, were optimized. Matrix effects were also investigated. Preconcentration factor was found to be 200. Detection limit and relative standard deviation (RSD) were 0.55 µg L-1 and 3.9%, respectively. The procedure was successfully used for the determination of trace levels of Sudan Blue II in food, ink, antifreeze, and industrial waste-water samples.

【 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