Percentage relative standard deviation (%RSD) of tR for all analytes were ≤1%. Percentage recoveries (Figure , Tables and) obtained with the method were consistently high (88 ± 7 %, n=7, expressed as mean ± standard deviation) across all analytes. On average, %RSD for analytes' peak area was 7%, with the poorest precision for 3,5-Dichlorobenzoic acid at 15%. Peak area variations with injection of standard in solvent at the same concentration (Table ) show how the imprecision of the proposed method is mainly driven by analytes that exhibit low ionization efficiency and consequently low signal in QTOF full-scan (for example, %RSD for Dichloprop was 12% with the extracted solution, 14% with the standard in solvent). By comparison to the modified WAX-SPE methodology, percent recoveries were lower and less consistent at 63 ± 9 % (n=7), with an average %RSD of peak areas of 15%.