Cation nature

Adsorbed amount,

Mads (mg)

Desorbed amount,

Mdes (mg)

Monovalent cations

Li+

Na+

K+

0.1215

0.1113

0.0763

0.0012

0.0011

0.0006

0.98

0.96

0.85

Divalent cations

Ca2+

Mn2+

Mg2+

0.0452

0.0428

0.0410

0.0004

0.0003

0.0003

0.85

0.80

0.77