大黄素甲醚

刺囊毛霉（Mucorspinosus分离源：土壤3.3450），刺囊毛霉（Mucorspinosus3.2450）对大黄酚、大黄素甲醚、大黄素具有转化作用。

Mucor spinosus ( 3.3450 ), and Mucor spinosus ( 3.2450 ) were able to transform chrysophanol , physcion and emodin .

其中，大黄素甲醚和大黄酚属于蒽醌类，其余5种皆为黄酮。

Among them , Physcion and Chrysophanol are anthraquinone , the remaining five kinds are flavonoids .

本文对几种分离方法进行了比较，最后采用pH梯度萃取法，找到合适的溶剂与pH梯度液对大黄酚和大黄素甲醚进行了较好的分离。

After comparison of several separation methods , pH grads extraction method was adopted , and Chrysophanol and Physcione was separated well using a proper solvent and optimal pH gradient solution .

结果显示，在薄层硅胶H为填充剂的干层析柱上，以石油醚-乙酸乙酯（15∶1）为洗脱剂，可以将大黄酚和大黄素甲醚分离。

The results indicated that they could be separated through silica gel H for thin layer chromatography as the stational phase , and petroleum aether and ethyl acetate ( 15 ∶ 1 ) as the mobile phase .

目的：研究大黄有效成分大黄素甲醚对豚鼠皮肤黑色素细胞内一氧化氮合酶（Nitricoxidesynthase；NOS）表达的变化，阐明大黄对黑色素细胞的有效作用浓度和可能机制。

Objective : To study the change of nitric oxide synthase ( NOS ) expression in melanocyte of guinea pig 's skin under the effect of emodin monomethyl ether ( EME ) and to explain the effective consistence and mechanism of rhabarb action .

大黄素甲醚的残留及其环境安全性研究

A Study on Residue of Physcion and Its Environmental Safety

干柱层析法分离大黄酚和大黄素甲醚

Seperate method of chrysophanol and physcion in dry column chromatography

中药大黄的生化学研究ⅩⅩ.大黄素甲醚在大鼠体内的吸收、分布和排泄

Absorption , distribution and excretion of physcion in rat

结论硅胶柱色谱可以实现大黄酚和大黄素甲醚的高效分离；

Conclusion Chrysophanol and physcion could be effectively separated by silica gel column chromatography .

目的研究大黄酚和大黄素甲醚混合物的高效分离方法。

Objective To study the efficient and simple method of separation of chrysophanol and physcion .

植物源杀菌剂大黄素甲醚防治黄瓜白粉病研究丛枝菌根真菌对黄瓜南方根结线虫病的影响

Control of Cucumber Powdery Mildew with Physcion Effect of Arbuscular mycorrhizal Fungi on Meloidogyne incognita in cucumber plant

大黄素甲醚对沙土鼠脑缺血损伤时肿瘤坏死因子、白介素-1表达的影响

Influences of rhubarb on expression of tumor necrosis factor and interleukin 1 in cerebral ischemic injury of gerbil

天然大黄中的大黄酚和大黄素甲醚由于结构相似，极性相近，因而常常是同时从大黄中被提取分离出来。

The Chrysophanol and Physcione in natural Rhubarb have resemble structure and close characters , so they were usually extracted from Rhubarb together .

大黄酚和大黄素甲醚是大黄中有功效的蒽醌类成份，由于两者结构相似，酸性与极性相近，往往难以分离。

Ahrysophanol and physcion are effective anthraquinones in rhubarb , but it is difficult to separate than other anthraquinones because of resemble structure and close characters .

RP-HPLC法同时测定五味首乌片中淫羊藿苷、大黄素和大黄素甲醚的含量

RP-HPLC simultaneous determination of icariin , emodin and physcion in Wuwei Shouwu tablets

用该方法对决明子药材色谱指纹图谱的峰纯度进行识别，鉴别出大黄素、大黄酚和大黄素甲醚三个纯色谱峰。

Three pure peaks of emodin , chrysophanol and physcion of chromatographic fingerprints of Cassiae Semen crude drugs was identified by the proposed method .

目的：建立同时测定虎杖及其提取物中白藜芦、大黄素、大黄酚、大黄素甲醚4种有效成分含量的高效液相色谱法。

Objective : To establish a HPLC method for simultaneous determination of resveratrol , emodin , chrysophanol , physcion in root of Polygonum cuspidatum and its extract .

方法：以总蒽醌含量，芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚的总量为指标，对不同干燥方法进行考察。

METHODS : The vaccum and spray methods were studied by determination of total anthraquinones and the sum of aloe-emodin , rhein , emodin , chrysophanol and physcion .