File Name : figure_s1.tif

Caption : figure s1: a demonstration of ultrasound-assisted and multiple extraction points dispersive liquid-liquid microextraction (ua-dllme)

File Name : figure_s2.tif

Caption : figure s2: chromatogram compiling negative mode compounds after dllme sample preparation procedure

File Name : figure_s3.tif

Caption : figure s3: chromatogram compiling positive mode compounds after dllme sample preparation procedure

File Name : table s1.docx

Caption : table s1. physical-chemical properties and mass parameters of all standards used in the development of dllme