基于中药质量常数的牡丹皮饮片等级研究

Study on the Grade of Peony Bark Pieces Based on the Quality Constant of Traditional Chinese Medicine

目的探究中药质量常数的牡丹皮饮片等级,明确等级划分的评价方法。方法观察并测量牡丹皮饮片的形态指标,采用高效液相色谱法(HPLC)测定牡丹皮饮片中各成分及含油量,根据计算出的牡丹皮饮片质量参数将其进行等级划分。结果按照牡丹皮饮片质量参数可将其划分为3个等级,其中一级质量常数≥1.56,二级质量常数<1.56,且≥1.12,三级质量常数<1.12。结论将牡丹皮饮片的外在特征及内在质量联系在一起进行观察,能够较为客观的对牡丹皮饮片等级进行划分,为其等级标准提供有效参考。

Objective To explore the grade of peony bark of Chinese medicine quality constant and to clarify the evaluation method of grade division.Methods The morphological indexes of peony bark pieces were observed and measured.The components and oil content of peony bark pieces were determined by high performance liquid chromatography(HPLC).The quality parameters of peony skin pieces were classified according to the calculated quality parameters.Results According to the quality parameters of the peony bark,it can be divided into three grades,wherein the first-order mass constant is greater than or equal to 1.56,the second-order mass constant is less than 1.56,and greater than or equal to 1.12,and the third-order mass constant is less than 1.12.Conclusion The external characteristics and intrinsic quality of the peony bark pieces can be observed together,which can objectively classify the peony skin pieces and provide an effective reference for their grading standards.