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Shared and unique metabolites quantified based on ionization modes and platforms. (A) A four-way Venn–diagram displaying the coverage of metabolites for LC-MS, GC-EI-MS, GC-CI-MS, and CI-MS (MS-FINDER 3.22 based discovery). (B) A two-way Venn diagram displaying overlap of metabolites for LC-MS and GC-MS approaches in NIST SRM 1950 plasma.
