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(A&B)Intracellular sample separated on UHPLC-Q-TOF/MS in positive and negative ionization mode; (C&D)Extracellular sample separated on UHPLC-Q-TOF/MS in positive and negative ionization mode; (E)Intracellular sample separated on GC-MS; (F)Extracted ion chromatography on HILIC-QQQ/MS.
