Research Article

A Simple and Quick Method for the Determination of Pesticides in Environmental Water by HF-LPME-GC/MS

Figure 2

Effect of the stirring speeds on pesticide extraction efficiency. Extraction conditions of the donor phase: 15.0 mL of water spiked at 100.0 µg L−1 of each pesticide; extraction time of 60 min; and ethyl octanoate in the acceptor phase. Error bars represented the standard deviation of the mean peak area for replicates.