Table 7.
Composition of the hogweed ash (in at %) determined from XPS.
Element | O | C | N | Ca | K | Cl | P | Mg | Na | Si |
---|---|---|---|---|---|---|---|---|---|---|
Conc. at. % | 29.23 | 40.08 | 0.26 | 2.8 | 21.02 | 1.35 | 1.6 | 2.79 | 0.4 | 0.47 |
St.Dev. | 0.266 | 0.294 | 0.132 | 0.105 | 0.168 | 0.075 | 0.144 | 0.259 | 0.2 | 0.142 |