Table 4.
Summary of the absolute molar ratios between heavy elements in PA66 plaques and char samples normalised with respect to tungsten present in all samples (W = 1.000). BrPS = brominated polystyrene; BrPBz = poly(pentabromobenzyl aacrylate); SnW and ZnW = tin (II) and zinc tungstates respectively.
| Sample | Br:W | Sn/Zn:W |
|---|---|---|
| SnW/BrPS plaque | 7.532 | 1.000 |
| Char | 0.040 | 0.673 |
| SnW-BrPBz plaque | 6.796 | 1.000 |
| Char | 0.053 | 0.638 |
| ZnW-BrPS plaque | 7.046 | 1.000 |
| Char | 0.368 | 0.284 |
| ZnW-BrPBz plaque | 3.842 | 1.000 |
| Char | 0.210 | 0.179 |