Analyte GC intraday GC interday Extraction lactic acid 6.3 ± 0.5 6.2 ± 0.4 6.0 ± 0.1 benzoic acid 0.63 ± 0.02 0.67 ± 0.06 0.61 ± 0.03 glycerol 0.12 ± 0.01 0.11 ± 0.01 0.12 ± 0.01 glucose 0.08 ± 0.01 0.08 ± 0.01 0.071 ± 0.004

Table 3: GC intra, interday, and extraction method repeatability for a bioprocessed sample of succinic acid (sample C) reported as a mean value (in μg/g) ± one standard deviation (n=3).