Table 3. The GC/MS results from each material extract in IPA.
| Compound | Retention Time (min) | Device Amount (μg/g) | Filament Amount (μg/g) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PLA | FDA PLA | FDA PLA Annealed | PETG | PC | PLA | FDA PLA | PETG | PC | ||
| Isoprpyl lactate | 4.8 | -- | -- | -- | -- | -- | -- | 11 | -- | -- |
| DL lactide | 9.4 | 7 | 12 | 5 | -- | -- | 5 | 8 | -- | -- |
| L-Lactide | 10.0 | 217 | 450 | 270 | -- | -- | 167 | 399 | -- | -- |
| m/z 59, 117, 131, 173 | 20.0 | -- | 26 | 16 | -- | -- | -- | 6 | -- | -- |
| m/z 56, 116, 170, 184 | 23.0 | -- | 23 | 10 | -- | -- | -- | 26 | -- | -- |
| m/z 58, 117, 175 | 23.3 | -- | 27 | 17 | -- | -- | -- | 60 | -- | -- |
| m/z 32, 128, 145, 200, 272 | 23.4 | -- | 10 | -- | -- | -- | -- | 13 | -- | -- |
| Triphenyl phosphate | 23.4 | -- | -- | -- | -- | -- | -- | -- | -- | 3 |
| DEHP | 24.5 | -- | 6 | -- | -- | -- | -- | 4 | -- | -- |
| m/z 56, 128, 200, 272,344 | 25.8 | -- | 8 | -- | -- | -- | -- | 8 | -- | -- |
| Unknown siloxane | 26.2 | -- | 30 | 17 | -- | -- | -- | 8 | -- | -- |
| Unknown siloxane | 27.8 | -- | -- | -- | -- | -- | -- | -- | 22 | -- |
| Unknown siloxane | 28.6 | -- | 31 | 25 | -- | -- | -- | 43 | -- | -- |
| Unknown siloxane | 29.7 | -- | -- | -- | -- | -- | -- | -- | 6 | -- |
| Unknown siloxane | 31.2 | -- | 27 | 9 | -- | -- | -- | 8 | -- | -- |
Data from the 3D printed device extracts and filaments are given in μg/g. Siloxanes were determined based on their distinct fragmentation patterns.