Multiclass Pesticide Residue Analysis in Fruit and Vegetable Samples by Combining Acetone-Based Salting-Out Assisted Extraction with Dispersive Liquid-Liquid Microextraction

Figure 6

Effect of extraction solvent volume on the enrichment factors of pesticides from the tomato sample. Experimental conditions: 5 mL UHP water; 1000 µL acetone extract; tetrachloroethylene; centrifugation rate and time, 4000 rpm and 600 s, respectively; .