硅胶

Methods Firstly, red chilli powder was soaked with organic solvent, then the extract was saponified under different conditions scheduled by temperature, time and solventcontent to obtain crude capsanthin which was refined by silica gel chromatography.

先用有机溶剂浸提粉碎的干辣椒粉；然后皂化处理浸提物，比较辣椒红色素在不同温度、时间、溶剂浓度下提取的效果；最后用硅胶柱层析进行精制分离。

The products were identified by IR,NMR,MS and elemental analysis. In our method,K.OH was used in place of NaOH to synthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate was purified on a silica gel column with chloroform/ethylacetate(4:l,v/v) as eluent and further purified by triturating with hexane/acetone(2:l,v/v).The luminescence produced by DMAE-NHS is a flash light with maximumemission at 0.4s and decay half-time of 0.9s. The luminescence intensity is 6.11x10 cps/mol,which is affected by the composition of trigger and surfactant.

DMAE·NHS的合成是本论文的关键和难点，我们对文献方法进行改进：文献方法用氢氧化钠与3，5-二甲基-4-羟基苯甲酸反应制得3，5-甲基-4-羟基苯甲酸钠，再用3，5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3，5-二甲基-4-羟基苯甲酸苄酯，我们用氢氧化钾代替氢氧化钠，使合成取得成功；在合成2'，6'-二甲基-4'-苯基-吖啶-9-甲酸酯时，文献方法对粗产品进行两次硅胶柱层析纯化，第一次柱层析用氯仿/乙酸乙酯(4：1，Ⅴ：Ⅴ)作溶剂和淋洗剂，第二次柱层析用己烷/丙酮(2：1，Ⅴ：Ⅴ)作溶剂和淋洗剂，按照文献方法得到的不是所需要的化合物，我们只进行第一次柱层析纯化，然后用己烷/丙酮(2：1，Ⅴ：Ⅴ)进行研磨，过滤，洗涤，除去溶于己烷/丙酮(2：1，Ⅴ：Ⅴ)的部分，得到所需要的产品。

Granular acetylene black is mainly used for producing conductive ,anti-static plastic ,rubber and

粒状乙炔黑主要用于导电、防静电塑料及橡胶、硅胶等产品的生产。

The synthetic procedure consists of three steps: the preparation of magnetic silica microbeads by polymer templating method; coupling of iminodiacetic acid with a bifunctional silane agent 3-glycidoxypro-pyltrimethoxysilane; charging the magnetic support with Cu(superscript 2+) With bovine serum albumin as a model compound, the adsorption behavior of protein on the magnetic matrix was studied.

采用模板法制备的单分散磁性硅胶微球，经过表面修饰偶联上亚氨基二乙酸，与过渡金属离子Cu(上标 2+)螯合，制成一种新型的磁性固定化金属亲和纯化载体。

Desorption and isotherm adsorption experiments were also performed.

测定了硝酸溶液中三种价态的镎在硅胶上吸附的等温线和表观吸附热。

It is shown that the adsorption of monododecyl phosphate on the surface of silica H is chemical adsorption and according with Langmuir adsorption isotherm formula.

结果表明，单十二烷基磷酸酯在硅胶H表面上的吸附符合Langmuir吸附等温式，且这种吸附为化学吸附。

Main Products: insulation, shielding, EMI material: copper foil, aluminum foil, conductive fabric, conductive foam, conductive adhesive paper, fire fast Pakistani paper, PET, PVC, barley paper, kraft paper, EPE jacket, sponge Care Earthquake sets of products: rubber, back to power pad, transparent Feet, 3M, PORON pad, fire-retardant EVA, high foam heat insulation materials: transparent mica films, silica films, fiber cloth, asbestos insulation plastic affixed to products: a variety of electronic, electrical appliances, mobile special pad, magic, silicone paste, conductive adhesive, strong double-sided tape, 3M, Nitto, Sony Materials and other special stickers dust: dust-proof net, no anti-cloth , filter cotton, cotton activated carbon, iron sponge Network Products: high density sponge, cameras cotton, cotton Ventrofix cartridges, ball, filter cotton, cotton Other Products: EVA ball, plastic lens, velvet paper, sound-absorbing cotton, and oil cotton, protective film, screen printing, Epoxy, hand-rolled band, astigmatism paper, mouse pad

主要产品：绝缘、屏蔽、EMI材料：铜箔、铝箔、导电布、导电泡棉、导电胶面纸、防火快巴纸、PET、PVC、青稞纸、牛皮纸、珍珠棉护套、海棉护套防震产品：橡胶、回力胶垫、透明脚垫、3M、PORON垫、阻燃EVA、高发泡耐热、隔热材料：透明云母片、矽胶片、纤维布、隔热绵胶贴制品：各种电子、电器、手机特殊胶垫、魔术、硅胶贴、导电胶、强力双面胶、3M、日东、索尼等特殊胶贴防尘材料：防尘网、无防布、过滤棉、活性碳棉、铁网海棉产品：高密海棉、相机棉、墨盒圆棒棉、圆球、过滤棉、化妆棉其它产品：EVA球、塑胶镜片、绒纸、吸音棉、油棉、保护膜、丝印、滴胶、手挽带、散光纸、鼠标垫

Insulation, shielding, EMI material: copper foil, aluminum foil, conductive fabric, conductive foam, conductive adhesive, thermal conductivity of silica gel film, NOMEX insulating films, mica films, barley paper, asbestos, PVC, PC, PET.

绝缘、屏蔽、 EMI 材料：铜箔、铝箔、导电布、导电泡棉、导电胶、导热硅胶片、 NOMEX 绝缘片、云母片、青稞纸、石棉、 PVC 、 PC 、 PET 。

Plastic gift: Professional development and production of various types of soft gifts, such as Block Mobile \ Mobile Phone Charm \Mobile \ cell phone non-slip pad \ frame \ cartoon frame \ lock key chain \ notebook \ luggage tag \ wrist band \ silicone hand Central \ mug \ car front anti-skid pad \ shockproof mat \ cup \ cushions \ bar pad \ mats \ mouse pad \ Mobile Sassafras \ U disk shell \ U disk sets \ brooch \ bracelet \ Watch band \ Fridge paste \ hairpins \ bookmarks \ book folder \ pen \ cartoon cap of a pen, such as soft / Epoxy / PVC micro-injection products, the other for all types of clothing, sports shoes, handbags, toys and gifts such as plants to provide plastic chapters, screen printing, printed standard, self-adhesive stickers, woven Tianbiao, Paper card, tag and other accessories.

塑胶礼品：专业开发生产各类软胶礼品，如手机座\手机吊饰\手机来电闪\手机防滑垫\相框\卡通相框\锁匙扣\笔记本\行李牌\手腕带\硅胶手环\马克杯\汽车前台防滑垫\防震垫\杯垫\桌垫\酒吧垫\地垫\鼠标垫\手机檫\U盘外壳\U盘套\胸针\手镯\手表带\冰箱贴\发夹\书签\书夹\笔筒\卡通笔套等软胶/滴胶/PVC微量射出制品，另外为各类服装、运动鞋、手袋、玩具等厂及礼品提供胶章、丝印、印标、不干胶贴纸、织标、皮牌、吊牌等辅料。

Room temperature ionic liquids are the hot points of the current research fields of chemistry, chemical engineering and functional materials. Since 1998, the preparation and application of ionic liquids as environmentally benign reaction media and functional material have been carried out in Lanzhou Institute of Chemical Physics. The detailed research work, including the design and preparation of novel ionic liquids, ionic liquid as catalyst and reaction medium in sulfuric acid free Beckmann rearrangement,...

离子液体介质与材料研究是当前化学化工、功能材料的热点领域之一。1998年底以来，我们以发展离子液体清洁反应介质和软功能材料为研究内容，以实现新离子液体的设计与合成，离子液体中无硫酸Beckmann重排反应、非光气异氰酸酯合成、二氧化碳吸收与活化、反应-升华分离一体化，微孔硅胶限制纳米尺度离子液体材料的设计合成和应用及离子液体-电化学技术集成等为目标开展了一系列研究工作并取得良好进展。

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。