In a recent work, Coscollà et al. [50] developed a LC–ESI-MS/MS
method for analysis of nine currently and extensively used pesticides
in citric, fruits and grapes, in fine airborne particulate matter
(PM 2.5). Acetone was selected as the most appropriate solvent for
extraction with PLE. All compounds presented matrix effect mainly
ion suppression. In order to compensate the matrix effect, a calibration
strategy based on using matrix-matched standard calibration
was used [134].