Figure 4 : The eight compounds used for the internal lab standard mix (MM8) plotted next to each other.

From: Computational workflow to study the seasonal variation of secondary metabolites in nine different bryophytes

Figure 4

Shown are the regions of the respective compounds in the raw chromatograms before the alignment of XCMS. Green=spring, yellow=summer, red=autumn, blue=winter. X axis: Retention time [s]. Y axis: Logarithmic total ion current. n=28.