| Analyte |
A(petroleum) |
F(initial process) |
K(initial process) |
G(final process) |
L(final process) |
| formic acid |
15±5 |
5±2 |
1.1±0.03 |
1±0.06 |
1.5±0.8 |
| acetic acid |
Below LOQ |
13±3 |
20±6 |
3.2±0.6 |
3.9±0.8 |
| oxalic acid |
8±5 |
Below LOQa |
Below LOQ |
NDb |
ND |
| lactic acid |
ND |
186±19 |
27±4 |
ND |
ND |
| 3-hydroxybutyric acid |
Below LOQ |
Below LOQ |
1.1±0.1 |
ND |
ND |
| butanediol |
Below LOQ |
5.1±0.3 |
3.6±0.1 |
ND |
ND |
| benzoic acid |
2.00±0.03 |
Below LOQ |
ND |
ND |
ND |
| glycerol |
ND |
0.49±0.06 |
ND |
ND |
0.23±0.03 |
| malic acid |
1159±24 |
10±2 |
Below LOQ |
Below LOQ |
Below LOQ |
| phthalic acid |
7±2 |
ND |
ND |
ND |
ND |
| citric acid |
ND |
Below LOQ |
8±1 |
ND |
ND |
| glucose |
Below LOQ |
3.1±0.2 |
0.07±0.01 |
0.02±0.001 |
Below LOQ |
a Below LOQ – below quantification limit
b ND – not detected |
