Table 1.
Inorganic salts and vitamin | Concentration (mg/L) | PTM (mg/L)a |
---|---|---|
– | 0 | 463 ± 6 |
(NH4)6Mo7O24·4H2O | 30 | 519 ± 2 |
(NH4)2SO4 | 2000 | 199 ± 8 |
CoCl2 | 0.5 | 436 ± 96 |
CuSO4·5H2O | 1 | 432 ± 8 |
FeSO4·7H2O | 30 | 477 ± 13 |
MnCl2·4H2O | 15 | 512 ± 10 |
MgSO4·7H2O | 1000 | 179 ± 10 |
Vitamin B12 | 0.1 | 419 ± 56 |
ZnSO4·7H2O | 20 | 254 ± 41 |
The values are averages of at least two independent trials.