Foreign substances | Lysine-proline | Proline-alanine | Alanine-tyrosine | |
---|---|---|---|---|
 |  | (10.22) | (2.09) | (3.0) |
Cations | Zn2+ | 10.9 | 2.55 | 1.89 |
Cu2+ | - | - | - | |
Mg2+ | 11.48 | 1.87 | 1.62 | |
 | Th4+ | - | - | - |
Anions | Br- | 8.79 | 2.19 | 2.21 |
CH3COO- | 8.79 | 2.09 | 3.14 | |
CO3 - | 6.96 | 2.18 | 2.75 | |
 | NO3 2- | 9.19 | 2.09 | 2.62 |