Table 2.
Substances found in PET bottles originally used for antifreeze and dishwashing products.
| Substance | GC Rt | Cramer Classification | Concentration in PET [mg/kg] | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (mol. weight [g/mol])- | [min] | Class | Alert | Sample No. | |||||||
| CAS-No. | I | II | III | gtc | ngtc | 7 | 8 | 9 | 10 | Mean 7–10 | |
| Unknown 3 | 1.7 | ? | ? | ? | ? | ? | 23 | 5.75 | |||
| Unknown 4 | 1.7 | ? | ? | ? | ? | ? | 16 | 4.0 | |||
| Ethanol (78.4)-64-17-5 | 1.8 | x | - | - | 710 | 940 | 180 | 90 | 480 | ||
| Unknown 5 | 2.1 | ? | ? | ? | ? | ? | 7.3 | 1.83 | |||
| Acetic acid (60.1)-64-19-7 | 2.1 | x | - | - | 3.2 | 0.80 | |||||
| 2-Butanone (79.6)-78-93-3 | 2.1 | x | - | - | 21 | 45 | 5.2 | 17.8 | |||
| Unknown 6 | 2.2 | ? | ? | ? | ? | ? | 2.2 | 0.55 | |||
| 2-Methyl-1,3-dioxolane (88.1)-497-26-7 | 2.4 | x | - | - | 1.0 | 1.3 | 0.4 | 0.68 | |||
| Ethylene glycol (62.1)-107-21-1 | 2.7 | x | - | - | 5.9 | 12 | 1.4 | 4.83 | |||
| Limonene (136.2)-7705-14-8 | 8.1 | x | - | - | 3.2 | 3.7 | 1.73 | ||||
x: Cramer classification; ?: classification not possible due to unknown substance; -: negative alert; +: positive alert.