1,10-phenanthroline
0.1 mM, 15% residual activity
4-chloromercuribenzoate
0.1 mM, 21% residual activity
Ag+
0.1 mM, no residual activity
Ca2+
0.1 mM, 2% residual activity
Cu2+
0.1 mM, no residual activity
Fe3+
0.1 mM, 15% residual activity
iodoacetamide
0.1 mM, 32% residual activity
Li+
0.1 mM, 26% residual activity
Sodium azide
0.1 mM, 20% residual activity