Gas Chromatography Coupled to High Resolution Time-of-Flight Mass Spectrometry as a High-Throughput Tool for Characterizing Geochemical Biomarkers in Sediments

Figure 3

Expansion (2500-2900 s) of XIC for m/z 368.34354 and m/z 396.37481, which corresponds to cholesterol (molecular mass: 386.35432 u) and β-sitosterol (molecular mass: 414.38562 u), respectively. Mass spectra of cholesterol and β-sitosterol are shown in Figure S2 in Supplementary Material.