期刊
FOOD AND CHEMICAL TOXICOLOGY
卷 50, 期 8, 页码 2709-2713出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fct.2012.05.021
关键词
Membrane filtration; Sudan orange G; Separation; Preconcentration; Spectrophotometry
资金
- NPST program, King Saud University [09-env656-02]
A simple membrane filtration procedure for separation-enrichment of Sudan orange G is presented. The method is based on the adsorption of Sudan orange G on a cellulose acetate filter and its elution from the membrane with 10 mL of ethanol. Sudan orange G in the eluent was determined by UV-visible spectrophotometry at 388 nm. The effect of analytical conditions, including pH, flow rates and eluent, sample volume, type of membrane for quantitative preconcentration and separation of Sudan orange G were examined. The influences of matrix components on Sudan orange G recoveries were studied. The preconcentration factor was 125. The detection limit was 4.9 mu g L-1. The relative standard deviation was 4.3%. The presented procedure was applied to chili powder, chili sauce, tomato sauce, powdered beverage and water samples. (C) 2012 Elsevier Ltd. All rights reserved.
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