Abstract
A computational technique is presented for obtaining the dynamic response to a gas diffusion module as part of a flow injection analysis (FIA) system. Based on orthogonal collocation, Laplace transformation and Fourier series, the method provides a relatively quick means to account for dispersive effects occurring both due to longitudinal convection and lateral diffusion. Simulation example, including a comparison to a dynamic signal obtained with an actual FIA system, are provided.
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