Table 3.
Feature | Name | m/z | RT (sec) | % Higher in BC | Category |
---|---|---|---|---|---|
F1* | 4-Hydroxyretinoic acid | 315.1957 | 177 | 20 | Vitamin A metabolite |
F2* | Unidentified | 334.2090 | 125 | 20 | Unidentified |
F3* | 2-Nitromethylene-piperidine | 141.0670 | 278 | 10 | Insecticide |
F4* | 2,4-Dinitrophenol | 183.0046 | 283 | 10 | Multiple commercial uses |
F5* | Oxalic Acid | 88.9883 | 129 | 10 | Cleaning agent |
F6* | N-acetyl-proline | 156.0666 | 283 | 10 | Endogenous metabolite |
F7* | Unidentified | 345.0777 | 51 | 20 | Unidentified |
F8 | Unidentified | 225.0712 | 139 | 30 | Unidentified |
F9 | Quaternium-52 | 610.4093 | 195 | 20 | Quaternary ammonium salt |
F10 | Ethyl cyanoacrylate | 124.0404 | 14 | 10 | Cyanoacrylate glue component |
F11 | 2-Chloro-4,5-xylyl N-hydroxy-N-methylcarbamate | 228.0427 | 284 | 10 | Cholinesterase inhibitor |
F12 | Psoralen, Angelicin | 167.0135 | 20 | 20 | Skin nodule treatment, |
F13 | Hexazinone | 273.1344 | 32 | 10 | Herbicide |
F14 | MHP (Methyl hydrogen phthalate) | 179.0350 | 138 | 10 | Organic compound |
F15 | 2-Hydroxyphenyl methylcarbamate | 166.0508 | 212 | 10 | Pesticide |
F16 | Levodopa (also exists as natural product) | 178.0510 | 23 | 20 | Dopamine precursor drug |
F17 | Phenylmercuric acetate | 337.0157 | 22 | 20 | Preservative |
Targeted mass spectrometry analysis was performed to aid in identification of features F1 to F7 which were found to occur in central communities of Fig. 1, indicated by asterisk.
T3DB annotations are provided for others (F8-F17).