【摘要】 运用对流-扩散模型研究了流动注射分析系统中的化学动力学，基于无化学反应时试样分散的浓度分布公式，运用数学归纳法导出了在一定条件下一级和二级反应的产物浓度分布公式，所得解析解便于计算机模拟产物生成曲线．解释了双峰的产生，并讨论了相关的动力学信息．更多还原

【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 FlA system 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.更多还原