the carbon isotope effect in the presence of ni2+ at ph 7.5 is k12/k13 = 1.0051 +/- 0.0012 and the hydrogen isotope effects are vmaxh/vmaxd = 0.98 +/- 0.07 and ( vmax/km ) h/ ( vmax/km ) d = 1.11 +/- 0.14 .
C0007017
carbon isotope
C0022262
isotope