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Ammoniumjon
NH4+
Hydroxidjon
OH-
Nitritjon
NO2-
Nitratjon
NO3-
Sulfatjon
SO4(2-)
Sulfitjon
SO3(2-)
Karbonatjon
CO3(2-)
Fosfatjon
PO4(3-)
Sulfidjon
S(2-)
Nitritjon
N(3-)