Studies on the Chemical Kinetics in Flow Injection Analysis System

Abstract

Abstract: Covection-diffusion model was used to study the chemical kinetics in flow injection analysis(FIA) system.Based on the expression of concentration distribution of physical dis-persion of sample without chemical reaction, the expressions of concentration distribution of product in single-line FlAsystem with first-order and second-order chemical reaction under certain conditions were derlved by mathmatical inductive method.The analytical solutions are very simple so that they can be applied to simulate the produced curves with computer easily.The experimental fact that double-humped peak occurred when sample volume is very large in second-order reaction system was interpreted by the results computer-simulated.In addition, other information concerning chemical kinetics was discussed.

Key words: Flow injection analysis, Chemical kinetics, Convection-diffusion model

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LIU Zhen, ZOU Gong-Wei, ZHANG Yu-Kui . Studies on the Chemical Kinetics in Flow Injection Analysis System[J]. Chem. J. Chinese Universities, 1997, 18(1): 33.

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Studies on the Chemical Kinetics in Flow Injection Analysis System

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