C. reinhardtii
P. patens
proton exchange capacity (mmol
*
g
-1
)
0.39
0.44
maximum Nd
3+
sorption capacity (mmol
*
g
-1
)
0.26
0.74
pK
a
1
4.4
4.0
pK
a
2
7.5
5.4
pK
a
3
8.9
6.8
pK
a
4
11.0
9.5
Table 1:
Chemical properties of biomass binding sites, generated by titration of dry biomass.