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. 2015 Sep 14;20(9):16687–16708. doi: 10.3390/molecules200916687

Figure 3.

Figure 3

Characteristic GC-MS chromatogram of the volatile compounds from coffee samples, ((A): 2–90.5 min; (B): 2–22 min; (C): 22–55 min; (D): 55–90.5 min).