萃取

When the first purification alcohol extract first enrichment, then add water to dissolve acid, then the acid fluid, finally using organic solvent basification extraction, the organic solvent extraction layer to get concentration, total alkaloid.

纯化时首先把醇提取液先浓缩，然后加入酸水进行溶解，接着再把得到的酸水液碱化，最后用有机溶剂萃取，萃取得到的有机溶剂层再进行浓缩，就得到总生物碱。

This method was better than the traditional extracting way using butanol saturated of water.It was simple and accurate to determine the quantit...

结论用固相萃取-HPLC-ELSD法测定黄芪药材中黄芪甲苷的含量，较传统的水饱和正丁醇萃取法更简便，且重复性好。

Solvent extraction using crown compounds as extractants is one of the most important separation methods of cesium.

用冠醚化合物作为萃取剂从酸性废液中溶剂萃铯，是目前众多分离手段中最重要的方法之一。

The gold extraction process from alkaline cyanide solution with the synergic system consisted of MSO and TBP is studied.

研究MSO-TBP组成的协萃体系从碱性氰化液中萃取金过程。

Compared with ultrasonic extraction, the amount of extraction solvent and extraction time can be reduced when the UNE was applied.

与传统的超声萃取法相比，超声雾化萃取法具有溶剂用量较小、萃取时间较短的优势

It includes the following steps: extract trivalent iron ion and divalent iron ion in water phase through organic extractant, get predecessor of; absterge it with secondary distilled water for2-3 times and get pure load metal predecessor of organic phase; mix organic phase of Mg2 and Fe3 with mol rate of 1:2 and introduce them into autoclave, add distilled water according to the rate of 3:1 or 4:1 of organic phase and water phase and airproof it, and then mix it fiercely, stripping with hydrothermal method at temperature between 200 degree C and 300 degree C and make them react for 2.5 hours; cool it to the room temperature under natural condition, separate liquid and centrifugalize it, absterge it with absolute alcohol for 2-3 times and dry it at temperature of 50 degree C for 30-180 minutes, then get product of magnesium ferrite.

包括如下步骤：通过有机萃取剂来萃取水相中的三价铁离子和二价镁离子，制得有机相前驱物；用二次蒸馏水洗涤2-3次，获得纯净的负载金属有机相前驱物；按照Mg 2 和Fe 3 摩尔比1∶2将有机相混合均匀后引入高压釜中，按照有机相与水相的比例为3∶1或4∶1加入蒸馏水，密封后，对溶液进行强力搅拌，水热反萃的温度在200-300℃之间反应2.5小时；自然冷却至室温，分液，离心分离，用无水乙醇洗涤2-3次，在50℃下干燥30-180分钟，得铁酸镁产品。

Grind fragrant gynocardia, chinese dwarf cherry, almond or peach kernel, extract with supercritical carbon dioxide to remove polyunsaturated fatty acid-rich oil and get functional oil byproducts.

将马蛋果、欧李、杏仁或桃仁粉碎，通过超临界二氧化碳萃取脱除富含多不饱和脂肪酸的油脂，副产功能油脂，萃余物通过食用乙醇萃取得到苦杏仁苷粗品，粗品重结晶得到高纯度苦杏仁苷，苦杏仁苷可以进一步通过苦杏仁酶水解得到苯甲醛。

It has been reported that the leaf and root extracts of Petasites hybridus relieve gastrointestinal pain, lung-disease such as asthma and cough, as well as spasms of the urogenital-tract, and even suppress the proliferation of human T24 bladder carcinoma cells. In 2000, S-petasin had been found to decrease the testosteron releasing by rat testicular interstitial cells.

此植物体及其萃取物应用在治疗使用上已约有两千年的历史，在1994年的研究中指出其粹取物对於人类膀胱癌细胞株（T24）具有抗增殖的效果，且於2000年，本实验室研究发现其粹取物-硫蜂斗菜素具有抑制大鼠间质细胞分泌睪固酮的效用，然而它对於人类前列腺癌细胞株是否也会造成毒杀效应，目前则尚未有文献探讨。

Results of acute treatments of oral glucose tolerance test showed that the plasma glucose levels of the diabetic Wistar rats administered, both of guava fruit water or alcohol extracts, with 200 or 400 mg/kg BW were lower than the control group (fed with equal volume of saline solution) after 30 minutes gavages. It is considered that the extracts containing protein, lipid and diet fiber may defer the stomach and small intestines to get empty and interfere or delay the sugar absorption and then increase the glucose utilization in diabetic rats.

结果显示糖尿病鼠不论灌食番石榴果实之水及乙醇萃取物粗萃物200或400 mg/kg BW的剂量，於OGTT第30分钟后的血浆葡萄糖值均比糖尿病控制组显著降低，推测原因可能与番石榴粗萃物所含的蛋白质，脂肪及膳食纤维延缓胃和小肠的排空，具有干扰或减缓葡萄糖的吸收，因而促进体内组织细胞对血液中葡萄糖的利用有关。

The metal sample is dissolved with HCl H 2O 2, and the dissolved nickel is separated from other activation products by anion exchange. Nickel is then complexed with pealetyldioxime in the alkaline solution, extracted with toluene, and finally determined by liquid scintillation counter.

先将样品用HCl H2 O2 溶液溶解、再经阴离子交换、氢氧化物沉淀分离后，在碱性溶液中用丁二酮肟配合镍、甲苯萃取、稀HCl反萃后再用液体闪烁计数器测定反萃液中6 3Ni放射性活度、原子吸收分光光度计测定金属中稳定镍。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。