ABSTRACT
The stopped-flow technique of Phillips and his co-workers (1) was introduced in 1967 for measuring rate constants of simple 42surface-catalyzed reactions. It is well known that complicated experimental arrangements are usually required to carry out kinetic experiments for such reactions. Moreover, the kinetic parameters so determined are usually apparent, and not true ones. The stopped-flow technique requires a very simple experimental set-up; i.e., a slightly modified gas chromatograph, and leads to the determination of true kinetic parameters. It is an accurate and easy method for studying heterogeneous catalytic reactions, and can be carried out even by students having the usual laboratory experience.
