最陡下降-模拟退火算法求解镉-腐殖酸配合物累积稳定常数

采用阳极溶出伏安法结合人工神经网络法中的最陡下降-模拟退火算法,研究了在碱性介质中镉与天然水环境中的有机物质腐殖酸(HA)的配合物,用ASV法测定了来源于煤炭腐殖酸的富里酸分子量平均值为995．2,求得PH≌10条件下的Cd²⁺-HA的1级和2级配合物累积稳定常数值1gβ₁=4．079,1gβ₂=8．602．

Calculation of the Cumulative Stabilization Constants of Cd-HA Complexes by Gradient Descent-simulated Annealing Algorithm

In this paper, the cumulative stabilization constants 0f Cd-HA (Humic Acid) inthe alkali media have been studied and calculated using anode stripping voltammetry method(ASV) cornbined with GD-SAalgorithm in artificial neural network(ANN)- The molecularweight of humic acid originated from coal was determined by ASVmethod and its averagevalue is 995.2, The cumulative stabilization constants of the first and second order complexes of Cd²⁺-HAunder the condition of pH=10 were calculated and their values are 1gβ₁=4.079 and 1gβ₂=8.602 respectively.Two local minimum of objective function appear in iterative process.The values of objective function jump out from these local minimum successfully and reach to the global optimization.