晶体溶解动力学实验方法研究

A Study of Experimental Method of Kinetics on Crystal Dissolution

本文用新型溶液等组分技术研究了HAP(HydroxylaPatite)晶体的溶解动力学。探讨了动力学过程的再现性。分析了影响再现性的因素。测定了溶解过程中不同时刻溶液中ca和P的离子浓度。实验结果表明:使用等组分技术可以获得动力学溶解过程的高再现性。等组分技术是用于研究晶体生长基础(诸如:溶液体系的晶体成核,溶质扩散和输运,生长结晶和微重力结晶)的有用方法。

A Kinetics of crystal dissolution of Hydroxylapatite (HAP) was studied by a newly constant composition technique from solution. A producibility of kinetic process was investigated. Some factors to influence the producibility were discussed. The concentrations of Ca and P ions in the solution were measured from time to time during the process of crystal dissolution The experimental results show that the high reproducibility of kinetic procedure has been realized by the technique. The constant composition technique from the solution is a useful method for studying a fundamental of crystal growth, such as nucleation, solute diffusion and transportation as well as biological and microgravity crystallization.