初均速法预测莪术粉的贮存期

Prediction of Storage Period of Ezhu Powder Using Initial Homogeneous Velocity Method

目的:预测莪术粉的贮存期,为含挥发油中药贮存期限的确定提供方法依据。方法:采用化学动力学初均速法,以吸光度作为质量控制指标,对莪术粉进行恒温加速实验。结果:建立了吸光度变化率与温度的关系方程InVoi=34.2751-13004.3462/T,r=0.9992,求得莪术粉贮存期计算公式t=(A0-0.45)/V0i。结论:初均速法很好地预测了莪术粉的贮存期,也为含挥发油中药贮存期的确定提供了方法依据。

Objective： To predict the storage period of Ezhu powder in order to provide thebasis for determining the storage period of Chinese medicine containing volatile oil. Methods： Adopted the initial homogeneous velocity method, did the initial homogeneous temperature acceleration experiment and took absorbance as the quality control criteria. Results： Established the correlation equation： InVoi = 34. 2751 - 1 3004. 3462/T, r = 0. 996, and founded the formula of the storage period of Ezhu powder t = （AO - 0. 45）/Voi. Conclusion： The initial homogeneous velocity method can predict the storage period of Ezhu powder well, and it is practicable in predicting the storage period of Chinese medicine containing volatile oil.