常見例句Objective:To study the chemical constituents of Veronicastrum caulopterum(Hance)Yamazaki by priliminary test. 目的:通過預試驗,初步探索四方麻的化學成分。Methods:The extracted mixture of Veronicastrum caulopterum(Hance)Yamazaki from petroleum ether,purified water and 95% ethanol were studied by test tube method. 方法:采用試管法,對四方麻的石油醚、水、95%25乙醇提取物進行研究,通過多種指示劑和顯色劑的沉淀反應或顏色反應,初步推斷四方麻中可能含有的化學成分。The chemical constituents of Veronicastrum caulopterum(Hance)Yamazaki was primarily demonstrated by precipitation reaction or color reaction with various indicator. 結(jié)果:通過預試驗,提示四方麻中可能含有黃酮類、酚類有機酸、糖類、香豆素類等化學成分。Veronicastrum Heist. [醫(yī)] 草本威靈仙屬stenostachyous veronicastrum herb 長穗腹水草Veronicastrum axillare(Sieb.et Zucc.)Yamazaki 腹水草 返回 Veronicastrum