Research Article
Discrimination of Pakistani Fountain Pen Inks by Gas Chromatography-Mass Spectrometry (GC-MS)
Table 4
Compounds identified by GC-MS for green fountain pen inks samples: Gr1, Gr2, Gr3, and Gr4.
| | Ink code | Compounds | Retention time (min) | Chemical formula | Relative abundance |
| | Gr1 | 2-Propenamide | 16.385 | (C3H5NO) | 3.84 | | Acetamide | 16.974 | (C2H5NO) | 3.84 | | Benzenemethanol | 23.351 | (C7H8O) | 25.17 |
| | Gr2 | Phenol | 6.377 | (C6H6O) | 5.95 | | Aniline | 7.275 | (C6H7N) | 5.98 | | Glycerin | 9.570 | (C3H8O3) | 5.95 | | Isosorbide | 12.847 | (C6H10O4) | 3.92 | | d-Arabinose | 16.112 | (C5H10O5) | 3.94 | | n-Phenyl-benzenamine | 17.356 | (C12H11 N) | 3.92 | | 1,4-Anhydro-D-glucitol | 19.931 | (C6H12O5) | 3.98 |
| | Gr3 | Aniline | 7.265 | (C6H7N) | 6.99 | | Glycerin | 9.579 | (C3H8O3) | 7.11 | | Methylparaben | 13.909 | (C8H8O3) | 4.60 |
| | Gr4 | Phenol | 6.348 | (C6H6O) | 6.99 | | Glycerin | 9.580 | (C3H8O3) | 7.03 | | 1,2,3,4-Butanetetrol | 12.171 | (C4H10O4) | 4.64 |
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