MSFig. 1. Summary of the procedural performance of the integrated screening methodapplied to the experiment with initial concentration of 500 g L−1. In step I, numbersrefer to the peaks remaining after each step; in step II, numbers refer to the peakintensity values for each entry; in step III, numbers before and after the slash refer tonegative and positive ionization mode, respectively, numbers in the square bracketsrefer to the same compounds detected in the opposite ionization mode, numbersin round brackets refer to fragments and/or adducts, an example is shown in thefigure.