Table 1 Quantitative elemental chemical composition of the analysed reed samples: control reed (dry) and reed kept in water
Chemical elements (wt.%) | Sample type | |||
|---|---|---|---|---|
control reed (epiderm) | Control reed (cross section) | Reed kept in water (epiderm) | Reed kept in water (cross section) | |
C | 57.14 | 54.43 | 40.75 | 56.44 |
N | 0.99 | 0.67 | 0.94 | 1.18 |
O | 26.39 | 37.32 | 45.98 | 37.47 |
Na | 0.13 | 0.09 | 0.11 | 0.10 |
Mg | 0.09 | 0.05 | 0.07 | 0.00 |
Al | 0.12 | 0.05 | 0.16 | 0.06 |
Si | 13.77 | 2.83 | 10.74 | 1.96 |
P | 0.02 | 0.00 | 0.09 | 0.15 |
Hg | 0.00 | 0.26 | 0.26 | 0.00 |
S | 0.00 | 0.04 | 0.00 | 0.17 |
Cl | 0.09 | 0.55 | 0.05 | 0.24 |
K | 0.15 | 0.77 | 0.09 | 0.55 |
Ca | 0.08 | 0.51 | 0.00 | 0.54 |
Ti | 0.10 | 0.00 | 0.00 | 0.00 |
V | 0.10 | 0.00 | 0.00 | 0.00 |
Pb | 0.10 | 0.49 | 0.12 | 0.00 |
Fe | 0.41 | 0.80 | 0.19 | 0.63 |
Cr | 0.00 | 0.71 | 0.24 | 0.51 |
Cu | 0.34 | 0.42 | 0.19 | 0.00 |