Foreign substances | Lysine-proline | Proline-alanine | Alanine-tyrosine | |
---|---|---|---|---|
 | (3.18) | (3.40) | (1.88) | |
Cations | Zn2+ | 2.0 | 1.20 | 1.22 |
Cu2+ | - | - | - | |
Mg2+ | 2.31 | 1.0 | 1.0 | |
 | Th4+ | - | - | - |
Anions | Br- | 2.0 | 1.24 | 1.78 |
CH3COO- | 1.95 | 1.13 | 1.44 | |
CO3 - | 1.72 | 1.24 | 1.78 | |
 | NO3 2- | 2.0 | 1.13 | 1.77 |