Bar adsorptive microextraction followed by microliquid desorption and gas chromatography-mass spectrometry, under the selected ion monitoring acquisition mode, has been developed for the determination of 20 organochlorine pesticides (OCPs) in herbal matrices. Assays performed on 25 mL of ultra-pure water samples spiked at the 2.0 µg L-1 level, yielded average recoveries ranging from 14.0% to 95.1% for the target OCPs, under optimised experimental conditions. The proposed analytical methodology demonstrated suitable detection limits (0.10-0.15 µg L-1) and good linear dynamic ranges (0.5-100.0 µg L-1) with determination coefficients equal or higher than 0.9900. The proposed methodology, by using the standard addition method, proved to be a suitable sorption-based static microextraction alternative to monitor traces of OCPs in black tea and tobacco products, in compliance with the green analytical chemistry principles. © 2021 Informa UK Limited, trading as Taylor & Francis Group.

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