Table 1.
Non-exchangeable organic hydrogen concentrations, in mmol/g (percent contribution in parentheses), based on 1H-NMR section integrals from printer powder and two PEPs fractions.
| H-C | H-C-C= | H-C-O | O-CH-O & H-C= | H-Car | Total | |
|---|---|---|---|---|---|---|
| Toner powder | ||||||
| Conc. | 21.0 ± 0.4 | 5.5 ± 0.1 | 3.9 ± 0.1 | 0.3 ± 0.1 | 1.3 ± 0.1 | 32.0 ± 0.3 |
| % Conc. | 65.6 ± 0.2 | 17.2 ± 0.3 | 12.0 ± 0.1 | 1.1 ± 0.1 | 4.1± 0.1 | |
|
| ||||||
| PEPs PM2.5 | ||||||
| Conc. | 36.3 ± 0.2 | 9.2 ± 0.1 | 5.2 ± 0.1 | 0.3 ± 0.1 | 5.4 ± 0.1 | 56.3 ± 0.3 |
| % Conc. | 64.5 ± 0.1 | 16.2 ± 0.1 | 9.1 ± 0.1 | 0.5 ± 0.1 | 9.5 ± 0.1 | |
|
| ||||||
| PEPs PM0.1 | ||||||
| Conc. | 33.4 ± 0.3 | 7.6 ± 0.3 | 6.8 ± 0.1 | 0.2 ± 0.1 | 6.4 ± 0.1 | 54.5 ± 0.2 |
| % Conc. | 61.0 ± 0.4 | 13.9 ± 0.3 | 12.5 ± 0.1 | 0.4 ± 0.1 | 11.7 ± 0.1 | |