Fig. 2
Detection of putative alkylsuccinates in the alkane-amended enrichment cultures. a Partial GC–MS m/z 128 and m/z 174 selected ion chromatogram showing the presence of (1-methyloctyl)succinate (C9), (1-methylnonyl)succinate (C10), (1-methyldecyl)succinate (C11) and (1-methylundecyl)succinate (C12). b Mass spectral profiles of (1-methyloctyl)succinate. c Mass spectral profiles of (1-methylnonyl)succinate. d Mass spectral profiles of (1-methyldecyl)succinate. e Mass spectral profiles of (1-methylundecyl)succinate