New method for the determination of parabens and bisphenol A in human milk samples using ultrasound-assisted extraction and clean-up with dispersive sorbents prior to UHPLC–MS/MS analysis

•The determination of bisphenol A and parabens in human milk samples is proposed.•An ultrasound-assisted extraction procedure followed by a cleanup step is optimized.•Box–Behnken experimental design is used for the optimization of the different variables.•UHPLC–MS/MS is used as analytical technique...

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