折光率检测用于中药膏方质量控制的可行性研究

Feasibility Study of Refractive Index Detection for Quality Control of Chinese Herbal Ointment

目的研究折光率检测中药膏方中间品清膏及蜂蜜浓度的可行性与实用性。方法分别测定清膏及蜂蜜的相对密度及其折光率,统计并分析2种测定方法的相关性。结果中药清膏和蜂蜜的相对密度与其折光率线性关系显著(P<0.01)。结论采用折光率检测法能快速测定出中药清膏和蜂蜜的浓度,用该法代替密度法,结果重复性好,取样量少,操作简便快捷,有利膏方成品的质量控制,也为自动化的生产工艺提供了新的思路。

Objective To study the feasibility and practicability of the refractive index detection for the intermediate goods of the Chinese herbal ointment and the concentration of honey. Methods The relative density and refractive index of clear paste and honey were measured respectively. The correlation between the two methods was analyzed. Results There was a significant linear correlation between the relative density and refractive index of Chinese herbal ointment and honey（ P 0. 01）. Conclusion By the method of measuring the refractive index,the concentrations of the clear paste of Chinese herbal ointment and honey can be rapidly determined. This method shows good reproducibility,with less sampling and convenient operation,it can be used to control the quality of the end product of traditional Chinese herbal ointment,providing an idea for automatic production process.