Determination of parabens in wastewater samples via robot-assisted dynamic single-drop microextraction and liquid chromatography–tandem mass spectrometry - Bocelli, Marcio David; Medina, Deyber Arley Vargas; Rodríguez, Julie Paulín García; Lanças, Fernando Mauro; Santos Neto, Alvaro Jose dos (Electrophoresis, 2022)