FIG. 5.
HPLC-APCI-MS base peak chromatograms of GDGTs released by acid hydrolysis of intact polar lipids eluting in (A) peaks 1 and 2, (B) peaks 3 and 4, (C) peak 5, and (D) peaks 7 to 9 in the HPLC-ESI-MS base peak chromatogram shown in Fig. 4.
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