Research Article

Low Density Solvent-Based Dispersive Liquid-Liquid Microextraction for the Determination of Synthetic Antioxidants in Beverages by High-Performance Liquid Chromatography

Figure 5

Effect of ionic strength. Extraction solvent volume, 90  L; dispersive solvent volume, 1 mL; pH, 6; sample volume, 5 mL; spiked concentration, 500 ng mL−1.
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