QuEChERS method based on magnetic solid-phase extraction combined with ultra-high performance liquid chromatography- electrostatic field orbitrap high-resolution mass spectrometry for detecting 191 pesticide residues in Chinese cabbage

This dataset aims to support the figures, tables, and related experimental data in the paper "QuEChERS method based on magnetic solid-phase extraction combined with ultra-high performance liquid chromatography electrostatic field orbital trap high-resolution mass spectrometry for detecting 191 pesticide residues in vegetables". Figure 1 shows the electron microscopy image of magnetic nanomaterials, which is the original image. The data file in Figure 2 shows the hysteresis loops of different magnetic materials, and this dataset provides the raw data of hysteresis loops. The data file in Figure 3 shows the extraction effects of different extraction solvents and salt solutions.

This dataset provides raw data tables for different extraction conditions. Figure 4 shows the matrix effects and recovery rates corresponding to different dosages of magnetic nanomaterials in the data file. This dataset provides optimized raw data tables for different dosages of magnetic nanomaterials, including peak area, test concentration, calculated matrix effects, and recovery rate data. Figure 5 is a picture of the purification solution, which is the original image. The data file in Table 3 shows the detection results of real green vegetable samples.