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Retention factors for the 54 metabolites in the 48 chromatographic runs (matrix D). The table on the top shows the chromatographic conditions of each sample: (A) indicates the chromatographic runs perfumed using amide, (Z) zwitterionic, (B) BEH amide and (D) mixed-mode diol stationary phases. As an example, a zoomed view of chromatographic run 48 is depicted.
