the rate constants of the hydrogen-deuterium exchange reactions were found to be 8.0 x 10 ( -5 ) , 2.6 x 10 ( -4 ) , and 8.0 x 10 ( -5 ) min-1 , respectively , at ph 8.5 and at 35 degrees , while at 62 degrees all three were found to be 0.84 approximately 1.1 x 10 ( -2 ) min-1 .
C0020275
hydrogen
C0011744
deuterium