查询词典 silica gel

Photoluminescence properties of ZnSe/silica gel-glasses were investigated by an advanced spectrum system. Excitated by laser of two different wavelength, the electron transition occurred in two different relaxation approaches. Interband radiation spectra and the surface defect radiation spectra of ZnSe nanoparticles were obtained. The correlation between the wavelength of eradiated light and the incident light verifies that the electronic-hole structures change with the size of the nanoparticle.

利用先进的稳态光谱测试系统研究了ZnSe/SiO〓凝胶玻璃纳米复合材料的光致发光特性，凝胶玻璃基纳米复合材料样品中观察到不同波长激发光激发样品，导致激发态电子经两种不同的弛豫途径的辐射跃迁发光，即ZnSe纳米粒子的带间发射光谱和ZnSe纳米粒子的表面缺陷态发光，辐射光的波长与入射光的波长是连续相关的，证实了凝胶玻璃中ZnSe纳米粒子存在随尺寸变化分立的能级结构。

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

方法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。

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。

The pigment extraction was loaded into a silica gel column and purified twice with the mobile phase of hexane/ethyl acetate (1:2, v/v) and chloroform/acetone (12:1, v/v) separately.

实验证明，本方法可以得到含量较高的褐藻黄素溶液，为褐藻黄素的大规模生产提供了一定的实验依据。

At last, the effective approach was found that the 024-antibiotic can be purified by freez-dry, methyl alcohol soaking, acetone, chloroform, and methyl alcohol continuously washing, alumina and silica gel column chromatography.

粗提制品的理化性质研究表明，024放线菌所产抗生素为无色晶体，易溶于水，可溶于甲醇和乙醇，且在甲醇中的溶解度较大，不溶或难溶于丙酮、氯仿、正丁醇、乙酸乙酯与苯。

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 。

Relying on the scientific and technological advantage and exhausted creativity, the company establishes independent research and development centre, producing a series of high-quality rubber foot cushions, rubber seal, button, silica gel fin , shielding products of EMI/EMC The electric conduction steeps the cotton , conductive copper Aluminum foil, PP, NOMEX, FIBBER, PC, MYLAR, etc.

凭借科技优势和不竭的创造力，公司成立了独立的研发中心，生产一系列高品质的橡胶脚垫、橡胶密封件、按键、矽胶散热片、 EMI/EMC屏蔽制品(导电泡棉、导电铜铝箔、PP 、NOMEX 、FIBBER 、PC 、MYLAR等)、发泡系列EVA 、CR SPONGE 、EPDM SPONGE 、吸音棉、隔音棉、 PORON）、保护膜、不织布等冲型，品种繁多，可以为客户提供多样化选择和量身订做的配套服务。

We could provide different kinds of Cat litter according to the customer requirement, such as bentonite cat litter, silica gel cat litter and pine cat litter.

公司可以根据客户的不同需求，提供膨润土猫砂，水晶猫砂及松木猫砂一系列产品，远销欧美市场，受到客户的广泛好评和欢迎。

We could provide different kinds of Cat litter according to the customer requirement, such as bentonite cat litter, silica gel cat litter and pine cat litter. Our Cat litter enjoy a good market in America, Europe and Southeast Asia, receive warm welcome and good praise among our customers.

公司可以根据客户的不同需求，提供膨润土猫砂，水晶猫砂及松木猫砂一系列产品，远销欧美东南亚市场，受到客户的广泛好评和欢迎。

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。