乌索酸

The toxic compound was traced by lettuce germination test guided fractionation and HPLC purification, and was identified as 3β-formyl usolic acid on the basis of 1H and 13C NMR experiments. It is the first time to find this compound from the order of Myrtaceae

用高效液相色谱对桉树凋落叶中毒性物质进行分离、纯化，以小麦、绿豆、大速生菜为指示植物，对分离到的物质进行毒性跟踪，分离到一个毒性较强的组分，经1H氢谱和NMR鉴定为3–β甲酰基–乌索酸。

Objective To establish a method for the determination of the contents of ursolic acid and oleanolic acid in Syrupus Sambuci and Granulate Sambuci.

目的 测定陆英颗粒和陆英糖浆中乌索酸与齐墩果酸的含量。

It can be used to determine the contents of ursolic acid and oleanolic acid in Diospyros kaki.

方法操作简便、快速、准确，可用于柿蒂中乌索酸和齐墩果酸含量的测定。

ObjectiveTo develop an HPLC method with photodiode array detector for the determination of ursolic acid and oleanolic acid in Diospyros kaki by ultrasowithnic wave aided method.

目的采用超声辅助提取，建立高效液相色谱-光电二极管阵列检测法测定柿蒂中乌索酸和齐墩果酸的含量。

ObjectiveTo develop a new method for simultaneous determination of ursolic acid and oleanolic acid in Prunella vulgaris L.

目的建立同时测定夏枯草中乌索酸及齐墩果酸含量的方法。

MethodsUrsolic acid was extracted from Callicarpa macrophylla Vahl leaves by method of ethanol extracting and agglutination separating, and its structure was identified by IR, MS and NMR.

方法采用&醇提凝析法&提取纯化乌索酸，IR、MS、NMR鉴定其结构。

Result The 7 compounds of Illicium wardii A. C. Smith fruits were β-sitosterol, daucosterol, ursolic acid, 4, 12-Di-O-methylillicinone C, 11-Epi-illicinone E, quercetin and shikimic acid.

结果］贡山八角果实中的7个化合物是β-谷甾醇、胡萝卜苷、乌索酸、4， 12-Di-O-methylillicinone C、11-Epi-illicinone E、槲皮素、莽草酸。

ObjectiveTo develop an HPLC method for determination of ursolic acid and oleanolic acid in sanguisorba officinalis L.

目的建立地榆药材中乌索酸和齐墩果酸含量的测定方法。

The method was proved to be stable, fast, accurate and can be used for determination of ursolic acid and oleanolic acid in sanguisorba officinalis L..

结论方法灵敏、快速、准确，可用于地榆中乌索酸和齐墩果酸含量的测定。中国论文联盟http：//www.lwlm.com

The method was proved to be stable, fast, accurate and can be used for determination of ursolic acid and oleanolic acid in sanguisorba officinalis L..

结论方法灵敏、快速、准确，可用于地榆中乌索酸和齐墩果酸含量的测定。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。