Ultra55 field emission scanning electron microscopy

An Ultimate 3000 UHPLC System (Thermo, USA) was used for liquid chromatography experiments. LC-TOF/MS was performed on a UPLC (Waters, Milford, MA)-Q Exactive HF MS (Thermo Fisher Scientific, Rockford, IL, USA). A Midea microwave oven (max power = 1000 W, Guangdong, China) was used for synthesizing extraction membranes. A Saipurui SPE device with 24 ports (Tianjin, China) was used to perform membrane extraction. An Anyan nitrogen blow-drying apparatus (Hangzhou, China) was used for concentration. A Waters UPLC-Q Exactive HF MS System (Thermo Fisher Scientific, Rockford, IL, USA) was used for identification. IR and SEM characterization were performed on a Spectrum 100 FT-IR spectrometer (PerkinElmer Inc., Waltham, Massachusetts, USA) equipped with a DTGS detector, and Zeiss Ultra-55 field emission scanning electron microscopy.