Boscalid, a commonly detected fungicide, was found in carrot juice as well as in six other juice samples. Figure illustrates the LC-MS/MS DIA SWATH acquisition workflow for the identification of boscalid. The DIA approach allows the generation of product ion spectra for all precursors. For identification, an extracted ion chromatogram (XIC) is generated based on the exact m/z 343.0368 of the analyte, and its presence is first confirmed when its retention time fits that of the standard, 15.1 min.