化学动力学应用在药剂学上,主要是研究药物和制剂的稳定性,测定药物的降解速度,预测药物的有效期和了解影响反应速度的因素,一般以预测有效期最有实用意义。药物有效期的制订是一项比较复杂的工作,一般有留样观察法和加速实验法。留样观察法费时很长,可以用加热的方法加速分解反应,以缩短测定的时间。进行加速实验较为经典的方法是把药物放在不同的恒温下降解,间隔一定时间取样,测定含量,求出不同温度下的反应速度常数K,计算出室温时 Chemical kinetics applied in pharmacy, mainly to study the stability of drugs and preparations, determination of drug degradation rate, predict the validity of drugs and understanding of the factors that affect the reaction rate, the general prediction of the validity of the most practical significance. The formulation of the expiration date of a drug is a relatively complicated task. Generally, there are sample-observing methods and accelerated experimental methods. Sample-like observation method takes a long time, you can use the heating method to accelerate the decomposition reaction, in order to shorten the determination of the time. Accelerated experiments for the more classic method is to place the drug degradation at different temperatures, at regular intervals sampling, determination of content, obtained at different temperatures, the reaction rate constant K, calculated at room temperature