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. 2017 May 31;8:956. doi: 10.3389/fmicb.2017.00956

FIGURE 5.

FIGURE 5

Gas chromatography-mass spectrometry analysis of the oils, (A) PNG and (B) Tundra extracted from the incubations of oil field hNRB with nitrate and oils at the end of incubation period of 90 days. The presence of alkylbenzenes is represented as the ratio of peak areas of a particular alkylbenzene to mesitylene (1,3,5-trimethylbenzene). Note the difference in scale. Error bars represent standard deviations for duplicate measurements.