Study on the Technology of Extracting Microelements of Astragalus from Ningxia by Microwave-assisted Method
[Objective] To optimize the extracting process of microelements of Astragalus from Ningxia. [ Method] The essential micro elements such as Cu, Fe, Zn and Ca from Astragalus in Ningxia was extracted by Microwave assisted extraction ( MAE) , and their contents were determined by Flame Atomic Absorption Spectrometry(FAAS)method. [Result] Taking water as solvent, the contents of Cu, Zn as measure basis, the best process which were optimized by orthogonal experiments was 1:5.0 of solid-liquid radio, 10 min of extraction time, 480 W of microwave power; under these conditions, extraction effect of the microelement in Astragalus from Ningxia was good. [ Conclusion] These pri mary research results provided the theoretic basis to understand the quality of Astragalus from Ningxia comprehensively.
国家科技期刊平台
NSTL
万方数据
维普
