4.2.3.2 3-Aminopropylphosphonate - 43294 4.2.3.2 ethylsulfonate - 93371 4.2.3.2 hydroxylamine - 85 4.2.3.2 methylsulfonate - 228143 4.2.3.2 NaBH4 - 616 4.2.3.2 Cd2+ 0.1 mM, 100% inhibition 52 4.2.3.2 Co2+ 0.1 mM, 25% inhibition 23 4.2.3.2 Pb2+ 0.1 mM, 75% inhibition 139 4.2.3.2 Zn2+ 0.1 mM, 91% inhibition 14 4.2.3.2 Ag+ 0.1 mM, 92% inhibition 75