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[Objective] To study the effect of dry methods on the content of ligustilide in Miwu. [Methods]The content of ligustilide in Miwu. dried by different methods was determined by HPLC. [Results]There was a good linear relationship( r = 0. 999 9) between ligustilide and peak area when the sample injection was 0. 019 97- 0. 199 7 μg /mL,the average recovery rate was 100. 2% and RSD was 1. 09%(n =9). Different dry methods had a certain degree of effect on the ligustilide content in Miwu. [Conclusions]Oven-drying after drying in the sun is the best among the three different dry methods.
[Objective] To study the effect of dry methods on the content of ligustilide in Miwu. [Methods] The content of ligustilide in Miwu. Dried by different methods was determined by HPLC. [Results] There was a good linear relationship (r = 0 999 9) between ligustilide and peak area when the sample injection was 0. 019 97- 0. 199 7 μg / mL, the average recovery rate was 100. 2% and RSD was 1. 09% (n = 9). Different dry methods had a certain degree of effect on the ligustilide content in Miwu. [Conclusions] Oven-drying after drying in the sun is the best among the three different dry methods.