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. 2022 Sep 15;27(18):6002. doi: 10.3390/molecules27186002

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