New methods have been developed for obtaining 82Br and 82Brm organic retentions produced by 82Brm isomeric-transition reactions and radiative neutron capture by 81Br, respectively. No isotope effect was found for 80Brm and 82Brm reactions activated by the (n, γ) process. The 82Brm (I.T.) 82Br process was found to produce 82Br organic retentions nearly twice as high as the 80Brm and 82Brm organic retentions produced by the (n, γ) process. Effects of solidifying samples indicate a clumping of bromine molecules upon freezing. Product analyses indicate similar reaction mechanisms for the (n, γ) and (I.T.) activated reactions.