查询词典 silica gel

In this paper, Amitraz and Buprofezin in Chinese green cabbage were extracted, followed by the sample cleanup with homogenate and silica gel column, the eluate was quantitated by gas chromatography with NPD.

采用样本匀浆液与层析硅胶一起过柱的方法，对上海青样本中残留的噻嗪酮和双甲脒进行净化处理后，经气相色谱外标法对两种农药的残留量同时进行定量分析。

The preparation process of equisetum pratense total alkaloid includes the following steps: coarse pulverizing equisetum pratense to obtain rough powder, methyl alcohol percolation to obtain percolate, recovering methyl alcohol, concentrating, degreasing by means of petroleum ether, alkalifying concentrate, CHCl3 extracting, soda lye washing, neutral water washing, recovering CHCl3 to obtain rough alkaloid, adsorption by using silica gel column, eluting, recovering solvent so as to obtain refined EPR.

该发明是通过两个步骤来实现的：第一步，提取草问荆总碱，流程：草问荆粗粉――渗漉液――浓缩液(析胶、石油醚脱脂、氨水碱化)――碱化浓缩液(CHCl3萃取)――CHCl3层――CHCl3液(回收CHCl3)――粗生物碱――吸附硅胶柱――精致EPR。第二步，选择实验试剂、仪器、用小鼠作为实验对象，进行中枢神经系统实验，研究作用及作用机制。

Methods Silica gel column chromatography and PTLC were used to separate and purify the compounds from the petroleum ether soluble fraction of ethanol extract.

方法用硅胶柱色谱和制备薄层等方法从乙醇提取物的石油醚萃取部位分离化合物，通过波谱方法鉴定其结构。

Liu Baoliang explanatorily uses silica gel as the sculpture material; Zang Kunkun explores the space extension; Na Wei utilizes the special blended oil so as to give prominence to the character, and they are the examples of the exploration in painting.

刘宝亮开拓性的运用硅胶作为雕塑素材和臧坤坤对于空间延展性的探索以及那危为了表现作品人物质感而运用自己调和的特殊油进行创作都体现了八零后艺术家对于绘画形式语言的探索。

In this paper, the reflux of ethanol and the technique of separation with silica gel were used to extract and separate ursolic acid from Forsythia suspensa Thumb.

本文采用乙醇回流法与硅胶柱层析分离技术相结合的方法对连翘中熊果酸进行了研究，并对其最佳工艺参数进行了研讨。

The separation of fucoxanthin was carried out by the method of silica gel column chromatography.

利用紫外-可见光谱分析，进行了褐藻黄素的定性分析。

Since its inception 96 years, with a strong engineering and technical strength and excellent quality management, to become well-known enterprises, Dongguan City, in the various regions of the country enjoys a high reputation, the company introduced advanced foreign technology mass production of the wholesale carved sludge, cloud art card carving sludge, color sludge, rubber mud, clay, Fimo clay, anti cement, mold clay, sculpture work, oven, press mud machine, Fimo design and production, AB water, PU resin, unsaturated resin, a variety of silicone oil, the Japanese Shin-Etsu KF-96, 2-methyl silicone oil , Emulsified silicone oil , Silica gel, silicone, food defoamer, students with rubber mud, palm clay, color clay, carved clay, epoxy AB glue, green red gum, Crystal, head knot soil, Fimo clay, plastic raw materials button , water-soluble silicone oil, silicone oil emulsion, Shin-Etsu potassium-based high-temperature silicone oil and all kinds of silicone oil, Poly water, accelerator, light powder, hardening agent, caustic soda, caustic soda, titanium dioxide, bar-mode band, skim gauze, Wen Zhangbu, trimming needles, repair embryo gun oil, gun repair embryo, glass fibers, fiber cloth, hot sol, paint extinction powder, oil dry cleaners, petroleum jelly, ceramic mold release agent, green red gum, potassium soap, silicon oil, silicone, mold rubber, silicone Recycling of waste silicone resin, ceramic ...

公司自96年成立以来，以强大的工程技术实力和优良的品质管理，成为东莞市知名企业，在全国各地区享有极高的声誉，公司引进国外先进技术大量生产批发精雕油泥，云艺牌精雕油泥，彩色油泥，橡皮泥，胶泥，软陶泥，防水泥，模具泥，雕塑工作，烤箱，压泥机，软陶设计与制作，AB水，PU树脂，不饱合树脂，各种硅油，日本信越KF-96、二甲基硅油，乳化硅油，硅胶，矽利康，食品消泡剂、学生用橡皮泥、手板泥、彩色油泥、精雕泥、环氧AB胶，青红胶，水晶胶，目结土、软陶泥、按键胶原料、水溶性硅油、乳化硅油、日本信越钾基耐高温硅油及各种硅油、波丽水、促进剂、轻粉、硬化剂、片碱、烧碱、钛白粉、扎模带、脱脂纱布、蚊帐布、修边针、修胚枪油、修胚枪、玻璃纤维，纤维布、热溶胶、油漆消光粉、油污干洗剂、凡士林、陶瓷脱模剂、青红胶、钾肥皂、矽油、矽胶、模具胶、矽利康、回收废硅胶。。。

Afterward, people found the silica gel, guar gum and carrageenan also could be used in some situation.

后来，又发现无机硅胶、瓜尔胶、卡拉胶在某些情况下可用作凝固剂。

The water-soluble holothurian glycosides were purified by macroporous resin and silica gel column chromatograghy, and the antifungal activities of different glycoside fractions were investigated.

先后利用大孔树脂柱层析和硅胶柱层析对水溶性海参皂苷进行了纯化，并对各种纯化组分的抗真菌活性进行了测定。

The equilibrium adsorption test results show that the hygroscopic capacity of new composite desiccant is two times bigger than that of silica gel.

实验结果显示与常用硅胶干燥剂相比，前者的吸湿能力约是后者的2倍以上。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。