常見例句雙語例句It can also be used for water precipitation after concentration of alcohol extraction from traditional Chinese Medicine.也可用于中藥醇提后濃縮進行水沉淀的操作。In this paper, the method of reflux extraction, concentration and acid precipitation of 60% alcohol was used to extract crude baicalin with high yield from Scutellaria baicalensis.本論文采用60%乙醇回流提取、濃縮和酸沉的方法從黃芩中提取得到高產(chǎn)率粗黃芩苷。kns50.chkd.cnki.net 返回 alcohol precipitation concentration