Modulated molecular beam mass spectrometry: A generalized expression for the ’’reaction product vector’’ for linear systems

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Abstract
A generalized expression is developed that relates the ’’reaction product vector’’, ε exp(−iφ), to the kinetic parameters of a linear system. The formalism is appropriate for the analysis of modulated molecular beam mass spectrometry data and facilitates the correlation of experimental results to (proposed) linear models. A study of stability criteria appropriate for modulated molecular beam mass spectrometry experiments is also presented. This investigation has led to interesting inherent limitations which have not heretofore been emphasized, as well as a delineation of the conditions under which stable chemical oscillations may occur in the reacting system.