SEARCH Articles Figures Tables And primary isotope effects Isotope effect, primary deuterium Isotope effects primary, tautomerization Kinetic deuterium isotope effects primary Kinetic isotope effects primary Kinetic isotope effects primary hydrogen-deuterium Primary and secondary isotope effects Primary and secondary kinetic isotope effects Primary hydrogen isotope effects on eliminations and rearrangements Primary hydrogen isotope effects on simple bond cleavage Primary isotope effects and reacting bond orders Primary isotope effects defined Primary isotope effects temperature dependence Primary isotope effects temperature independence Primary kinetic hydrogen isotope effects Primary kinetic isotope effect for glucose-6-phosphate isomeras Primary kinetic isotope effect of sulfur Primary solvent kinetic isotope effect Primary tritium isotope effects The Origin of Primary Kinetic Isotope Effects