Recent experiences applying INS to examine a series of nickel-based methane reforming catalysts have enabled a generic experimental methodology to be developed. In collaboration with an industrial partner, this methodology is now being applied to examine a range of iron-based Fischer-Tropsch (F-T) catalysts. This proposal seeks to quantify the amount of hydrogen associated with these catalysts during the activation stage of the catalytic process. INS provides a unique method for determining this very important parameter. Outcomes from the proposed work will guide the elucidation of a reaction scheme that seeks to define the operational phase of an industrial grade F-T catalyst.This work is part of a Ph.D. project co-sponsored by Sasol Technology UK Ltd.