At last the vitexin extract of over 60 % was purified by a silica gel adsorption resin column and methanol recrystallization and then a vitexin extract was gotten with a content of 97.40 % .

最后，将60%以上的 牡荆 苷提取物过硅胶柱进行分离，并通过重结晶纯化，得到含量为97.40%的高含量牡荆苷提取物。

At last the vitexin extract of 60 % was purified to the content over 97 % by recrystallizations and the chromatography .

最后，60%的 牡荆 苷提取物经过重结晶、柱层析纯化后得到含量为97%的牡荆 苷 提取物。

Determination of Vitexin and Orientin in Trollius chinesis with HPLC Genetic Diversity Analysis of Partial Chinese Trollius Populations based on RAPD Markers

HPLC测定金莲花中 牡荆 苷和荭草苷的含量我国部分金莲花种质资源遗传多样性的RAPD研究

Vitexin was mainly excreted through bile and urine and the total percentage of the corresponding cumulative excretion was found to be nearly 30 % in the bile urine and feces .

牡荆 素主要通过 肝脏 和 肾脏 代谢排泄，在大鼠尿、粪和胆汁中的总排泄量约为 给 药量的30%。

After that the water-soluble extract was purified by alcohol precipitations the chromatography and crystallizations and three extracts 50 % flavonoids 70 % polysaccharides and 60 % vitexin were obtained .

然后，通过醇沉、柱层析和结晶的方法对水提物进行了分离，得到了含量为50%的总黄酮、70%的总多糖和60%的 牡荆 苷 提取物。

Time of Flight Mass Spectrometry of Vitexin

牡荆 素的飞行时间质谱

Column chromatography tests with silica gel were followed for the further purification the contents of vitexin and isovitexin were increased to 83.1216 % and 68.3653 % the recovery yields were 57.4153 % and 52.3514 % respectively .

用硅胶柱层析继续纯化 牡荆 苷、异牡荆苷粗品， 牡荆苷的含量由28.1451%达到83.1216%，收率为57.4153%：异牡荆苷的含量由6.5682%达到68.3653%，收率为52.3514%。

Three compounds were isolated from the active part and identified as vitexin vitexin glucoside vitexin rhamnoside NMR data and physical and chemical character .

对有效部位进行了化学成分分离，得到了三个化合物，分别为 牡荆 素、 牡荆素鼠李糖苷、牡荆素葡萄糖苷。

The flavonoid ingredients such as rutin quercetin hypericin and vitexin are main efficient components in Hawthorn leave which reduce blood pressure and blood lipid while improve cardiac output .

山楂叶中的黄酮类化合物如芦丁、金丝桃甙、槲皮素、 牡荆素等，是其主要的有效成分， 可以起 到降压、降血脂、增大心脏血流量等作用。