Research Article
Multiclass Pesticide Residue Analysis in Fruit and Vegetable Samples by Combining Acetone-Based Salting-Out Assisted Extraction with Dispersive Liquid-Liquid Microextraction
Figure 9
Three layers of extracted vegetable and fruit samples at the sample pretreatment stage. The organic phase at the upper layer of the centrifuge tube: tomato (a), apple (b), pear (c), and melon (d).