Quality Standard of Oxyria sinensis Hemsl

[Objectives]To establish the quality standard of Oxyria sinensis Hemsl.[Methods]The method in Chinese Pharmacopoeia(2020 edition)was used to determine the moisture,total ash,acid-insoluble ash and alcohol-soluble extracts of O.sinensis.The qualitative identification of medicinal materials was carried out by microscopic identification method and thin layer chromatography(TLC).The contents of hyperoside and isoquercitrin were determined by high performance liquid chromatography(HPLC).[Results]The total amount of moisture,total ash,acid-insoluble ash,alcohol-soluble extract,hyperoside and isoquercitrin of 12 batches of medicinal materials were 8.56%-11.53%,11.26%-15.48%,1.62%-2.56%,17.75%-26.09%,and 0.036%-0.42%,respectively.The microscopic features were obvious,and pores,fibers,calcium oxalate clusters,calcium oxalate square crystals,cork cells could be observed.Fluorescent spots of the same color were displayed at the positions corresponding to the hyperoside reference substance.[Conclusions]Establishing relatively complete quality standards for O.sinensis medicinal materials can provide a reference for the quality control of medicinal materials.

Study on Quality Standard of Hibiscus trionum L.

[Objectives]To establish the quality standard for Hibiscus trionum L.[Methods]The moisture,total ash,acid insoluble ash and extract of H.trionum L.were determined by the method of Chinese Pharmacopoeia 2020 edition.The medicinal materials were qualitatively identified by microscopic identification and TLC,and the content of quercetin was determined by HPLC.[Results]The moisture,total ash,acid insoluble ash and extract contents of the 12 batches of samples were 7.69%-12.94%,10.44%-14.62%,1.89%-3.64%,16.56%-21.81%,microscopic characteristic was obvious,and a method for TLC and content determination of H.trionum L.was established.[Conclusions]A perfect quality standard was established,which can be used for the quality control of H.trionum L.