Gas Chromatography/Atmospheric Pressure Chemical Ionization-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry of Pyrolysis Oil from German Brown Coal

Figure 6

Scatter plot of assigned alkyl phenols, alkyl dihydroxy benzenes, and alkoxyl alkyl phenols. Identified components of the RMSC are colored red for alkyl phenols and blue for alkyl dihydroxy benzenes/alkoxyl alkyl phenols. (a) Phenol, (b) o-cresol, (c) m-cresol, (d) 2,6-dimethylphenol, (e) 2-ethylphenol, (f) hydroquinone, (g) guaiacol, (h) 4-methylcatechol, (i) 2-methylhydroquinone, (j) 4-methylguaiacol, (k) 4-ethylguaiacol, and (l) 4-propylguaiacol.